Definitions

• P-32 -
  A radioactive form of phosphorus used in the treatment of cancer.
• P-V Tussin Syrup
  
• p-value -
  A statistics term. A measure of probability that a difference between groups during an experiment happened by chance. For example, a p-value of .01 (p = .01) means there is a 1 in 100 chance the result occurred by chance. The lower the p-value, the more likely it is that the difference between groups was caused by treatment.
• p24
  A bullet-shaped core made of another protein that surrounds the viral RNA within the envelope of HIV. The p24 antigen test looks for the presence of this protein in a patient's blood. A positive result for the p24 antigen suggests active HIV replication. p24 found in the peripheral blood is also thought to correlate with the amount of virus in the peripheral blood. ...
• p53 gene -
  A tumor suppressor gene that normally inhibits the growth of tumors. This gene is altered in many types of cancer.
• PABA
  para-Aminobenzoic acid (PABA) is a chemical used in sunscreen that is an essential nutrient for some bacteria. It is sometimes called Vitamin B-x, although PABA is not essential for humans and it varies in its activity from other B vitamins. The chemical formula is (COOH)-Ph-NH2 / (C7H7NO2) also known as 4-Amino-benzoic acid and has the chemical structure: PABA is a white crystalline substance that is only slightly soluble in water.
• Pacaps
  
• PACE
  Pace is the suburban bus operator in the Chicago area. It operates the public buses in the suburbs north, west and east of Chicago. Pace's headquarters are in Arlington Heights, Illinois.
• Pacemakers and Implantable Defibrillators
  
• Pacerone
  
• Pacific Islander Health
  
• Pacific Islander Women
  
• PACIS
  
• pack year -
  A way to measure the amount a person has smoked over a long period of time. It is calculated by multiplying the number of packs of cigarettes smoked per day by the number of years the person has smoked. For example, 1 pack year is equal to smoking 1 pack per day for 1 year, or 2 packs per day for half a year, and so on.
• paclitaxel -
  An anticancer drug that belongs to the family of drugs called mitotic inhibitors.
• PAD
  add padding to; "pad the seat of the chair"
• Paddleball
  
• PAE
  In computing, Physical Address Extension (PAE) allows for up to 64 gigabytes of memory to be used in 32 bit systems, given appropriate operating system support. PAE is provided by Intel Pentium Pro and above CPUs (including all Pentium-series processors except the original Pentium and the Pentium MMX), as well as by some compatible processors such as those from AMD. The CPUID flag PAE is assigned for the purpose of identifying CPUs with this capability.
• Paget's Disease
  A disease characterized by accelerated bone turnover, resulting in the involved bone becoming enlarged but weak and fragile. The bone also feels warmer to touch due to increased blood supply. Also called osteitis deformans.
• Paget's disease of bone -
  A chronic condition in which both the breakdown and regrowth of bone are increased. Paget's disease of bone occurs most frequently in the pelvic and leg bones, skull, and lower spine. It is most common in older individuals, and may lead to bone pain, deformities, and fractures. Also called osteitis deformans.
• Paget's disease of the nipple -
  A form of breast cancer in which the tumor grows from ducts beneath the nipple onto the surface of the nipple. Symptoms commonly include itching and burning and an eczema-like condition around the nipple, sometimes accompanied by oozing or bleeding.
• Pain - Chronic
  
• Pain Control
  The gate control theory of pain of Ron Melzack and Patrick Wall arises from evolutionary psychology. It holds that evolution of intelligence in any natural environment, historically, begins with the recognition of the entity's own body - called the kinesthetic sense.
• Pain Management
  Pain management is the discipline concerned with the relief of pain. Acute pain, such as occurs with trauma, often has a reversible cause and may require only transient measures and correction of the underlying problem. In contrast, chronic pain often results from conditions that are difficult to diagnose or impossible to reverse. Some examples include cancer, neuropathy, and referred pain. ...
• Pain Relievers (Analgesics)
  An analgesic (colloquially known as painkiller) is any member of the diverse group of drugs used to relieve pain. Analgesic drugs include the nonsteroidal anti-inflammatory drugs (NSAIDs) such as the salicylates, narcotic drugs such as morphine, and synthetic drugs with narcotic properties such as tramadol. Other classes of drugs not normally considered analgesics are used to treat neuropathic pain syndromes; these include tricyclic antidepressants and anticonvulsants.
• pain threshold -
  The point at which a person becomes aware of pain.
• Pain, Chest
  
• Painful bladder syndrome
  
• Painful periods
  
• Painkillers and the Kidneys
  
• Paintball
  Paintball is a game whose participants use gas-powered markers to launch marble-sized pellets containing colored goo at each other. Among the most common of the many variations is a version of capture the flag, in which two teams of players attempt to seize each others' banner without being struck by a pellet.
• Pakistan
  The Islamic Republic of Pakistan, or Islami Jamhooriya-e-Pakistan, in Urdu, or Pakistan, is a country located in South Asia and the Greater Middle East. The country borders India, Iran, Afghanistan, the China and the Arabian Sea. With just over 160 million inhabitants, it is the sixth most populous country in the world, the second most populous Muslim majority nation. It is a member of the Commonwealth of Nations and the OIC.
• PALA -
  An anticancer drug that is being studied to increase the effectiveness of the chemotherapy drug fluorouracil.
• palate - PAL-et
  The roof of the mouth. The front portion is bony (hard palate), and the back portion is muscular (soft palate).
• palatine uvula -
  The soft flap of tissue that hangs down at the back of the mouth (at the edge of the soft palate). Also called uvula.
• Palau
  The Republic of Palau (also spelled Belau) is an island nation in the Pacific Ocean, located some 500 km east of the Philippines. Having emerged from United Nations trusteeship (administered by the United States of America) in 1994, it is one of the world's youngest and least populated nations.
• Palgic D Tablets
  
• Palgic-D Extended-Release Tablets
  
• Palgic-DS Syrup
  
• Palivizumab
  
• palliative care - PAL-ee-yuh-tiv
  Care given to improve the quality of life of patients who have a serious or life-threatening disease. The goal of palliative care is to prevent or treat as early as possible the symptoms of the disease, side effects caused by treatment of the disease, and psychological, social, and spiritual problems related to the disease or its treatment. Also called comfort care, supportive care, and symptom management.
• palliative therapy - PAL-ee-yuh-tiv
  Treatment given to relieve the symptoms and reduce the suffering caused by cancer and other life-threatening diseases. Palliative cancer therapies are given together with other cancer treatments, from the time of diagnosis, through treatment, survivorship, recurrent or advanced disease, and at the end of life.
• palmar-plantar erythodysthesia -
  A condition marked by pain, swelling, numbness, tingling, or redness of the hands or feet. It sometimes occurs as a side effect of certain anticancer drugs. Also known as hand-foot syndrome.
• palpable disease -
  A term used to describe cancer that can be felt by touch, usually present in lymph nodes, skin, or other organs of the body such as the liver or colon.
• palpation -
  Examination by pressing on the surface of the body to feel the organs or tissues underneath.
• Palsy
  Palsy is a medical term derived from the word paralysis and meaning paralysis of a body part often accompanied by loss of feeling and uncontrolled body movements such as shaking. It occurs in the name of several medical conditions including cerebral palsy (caused by some intracranial lesions) and brachial palsy (paralysis of an arm).
• pamidronate -
  A drug that is used to treat hypercalcemia (too much calcium in the blood) and cancer that has spread to the bones. It belongs to the family of drugs called bisphosphonates.
• Pamidronate Injection
  
• Pamine
  
• panacea -
  A cure-all.
• Panadol Infants
  
• Panama
  Panama (Spanish: Panamá) is the southernmost country of Central America. It constitutes the last part of a natural land bridge between the North American and South American continents. It borders Costa Rica to the west and Colombia to the east.
• Panax Ginseng
  Ginseng (Panax) is a genus of about five or six species of slow-growing perennial plants with fleshy roots, in the family Araliaceae. They grow in the Northern Hemisphere in eastern Asia and North America, typically in cooler climates; Panax vietnamensis, discovered in Vietnam, is the southernmost ginseng found. Ginseng is characterized by the presence of ginsenoside.
• Pancoast's tumor -
  Non-small cell lung cancer that originates in the upper portion of the lung and extends to other nearby tissues such as the ribs and vertebrae. Also called a pulmonary sulcus tumor.
• Pancof-HC Liquid
  
• Pancof-XP
  
• pancreas -
  A glandular organ located in the abdomen. It makes pancreatic juices, which contain enzymes that aid in digestion, and it produces several hormones, including insulin. The pancreas is surrounded by the stomach, intestines, and other organs.
• Pancreas Transplantation
  A pancreas transplant is an organ transplant that involves replacing the pancreas of a person who has diabetes with a healthy pancreas that can make insulin. The healthy pancreas comes from a donor who has just died or from a living relative. A person can donate half a pancreas and still live normally. At present, pancreas transplants are usually performed in persons with insulin-dependent diabetes who have severe complications. ...
• Pancreas, Inflammation of
  
• Pancreas/pancreatic Diseases And Disorders
  
• pancreatectomy - pan-kree-a-TEK-toe-mee
  Surgery to remove all or part of the pancreas. In a total pancreatectomy, part of the stomach, part of the small intestine, the common bile duct, gallbladder, spleen, and nearby lymph nodes also are removed.
• pancreatic -
  Having to do with the pancreas.
• pancreatic cancer -
  A disease in which malignant (cancer) cells are found in the tissues of the pancreas. Also called exocrine cancer.
• Pancreatic Cancer, Childhood
  
• Pancreatic Cancer, Islet Cell
  
• Pancreatic Disease
  
• Pancreatic Diseases
  
• pancreatic duct -
  Part of a system of ducts in the pancreas. Pancreatic juices containing enzymes are released into these ducts and flow into the small intestine.
• pancreatic enzyme -
  A protein secreted by the pancreas that aids in the digestion of food.
• Pancreatic Insufficiency
  
• pancreatic juice -
  Fluid made by the pancreas. Pancreatic juices contain proteins called enzymes that aid in digestion.
• Pancreatin
  extract from the pancreas of animals that contains pancreatic enzymes; used to treat pancreatitis and other conditions involving insufficient pancreatic secretions
• pancreatitis -
  Inflammation of the pancreas. Chronic pancreatitis may cause diabetes and problems with digestion. Pain is the primary symptom.
• Pancrelipase
  Zymase is a enzyme complex that catalyze glycolysis, the fermentation of sugar into alcohol and carbon dioxide. They occur naturally in yeasts.
• Pancrelipase Powder
  
• Pancuronium
  Pancuronium bromide is a chemical compound, used in medicine with the brand name Pavulon® (Organon Pharmaceuticals).
• Panglobulin
  
• Panic attacks
  A panic attack is a period of intense fear or discomfort, typically with an abrupt onset and usually lasting no more than thirty minutes. Symptoms include trembling, shortness of breath, heart palpitations, sweating, nausea, dizziness, hyperventilation, paresthesias (tingling sensations), and sensations of choking or smothering. The disorder is strikingly different from other types of anxiety, in that panic attacks are very sudden, appear to be unprovoked, and are often disabling.
• PanMist JR
  
• PanMist LA
  
• Panmist-DM Syrup
  
• Pantoprazole Injection
  
• Pantothenate kinase-associated neurodegeneration
  Pantothenate kinase-associated neurodegeneration (formerly called Hallervorden-Spatz syndrome) is a disorder of the nervous system. The condition is characterized by progressive difficulty with movement and speech. Affected people may also experience loss of intellectual function (dementia) and problems with vision. Researchers have described classic and atypical forms of pantothenate kinase-associated neurodegeneration. Both types involve a buildup of iron in certain parts of the brain. The pattern of signs and symptoms varies between the two types, however. The classic form appears earlier in childhood and progresses more rapidly than the atypical form.
• Pantothenic Acid
  Pantothenic acid, also called vitamin B5, is an antioxidant water-soluble vitamin needed to break down carbohydrates, proteins, and fats. Specifically, it is part of coenzyme-A (CoASH) in the metabolism and transfer of carbon chains. It is contained in whole grain cereals, legumes, eggs, meat, royal jelly and many other foods.
• PAP -
  Prostatic acid phosphatase. An enzyme produced by the prostate. It may be found in increased amounts in men who have prostate cancer.
• Pap smear -
  The collection of cells from the cervix for examination under a microscope. It is used to detect changes that may be cancer or may lead to cancer, and can show noncancerous conditions, such as infection or inflammation. Also called a Pap test.
• Pap Smear, Abnormal
  
• Pap test -
  The collection of cells from the cervix for examination under a microscope. It is used to detect changes that may be cancer or may lead to cancer, and can show noncancerous conditions, such as infection or inflammation. Also called a Pap smear.
• Papain
  Papain is a protease present in papaya which is useful in tenderizing meat and other proteins. Its utility is in breaking down the tough meat fibers and has been utilized for thousands of years in its native South America. It is sold as a component in powdered meat tenderizer available in most supermarkets. It is also sold as a dietary supplement to remedy indigestion.
• Papaverine
  Papaverine is an opium alkaloid (opiate) used intravenously in the treatment of erectile dysfunction.
• Papaverine Injection
  
• Papaverine Intracavernous Injection
  
• papillary serous carcinoma -
  An aggressive cancer that usually affects the uterus/endometrium, peritoneum, or ovary.
• papillary thyroid cancer - PAP-i-lair-ee
  Cancer that develops from cells in the thyroid and forms small finger-like projections. The most common type of thyroid cancer, it grows slowly, is more common in women than in men, and often develops before age 40.
• papillary tumor - PAP-ih-lar-ee TOO-mer
  A tumor shaped like a small mushroom, with its stem attached to the epithelial layer (inner lining) of an organ.
• papilledema - pap-il-eh-DEE-ma
  Swelling around the optic disk, the area where the optic nerve (the nerve that carries messages from the eye to the brain) enters the eyeball. Papilledema occurs when increased brain pressure caused by tumors or other problems results in swelling of the optic nerve.
• Papua New Guinea
  The Independent State of Papua New Guinea, often referred to by just the initials PNG, is a country in Oceania, occupying the eastern half of the island of New Guinea (the other half is the Papua province of Indonesia). It is in the southwestern Pacific Ocean, north of Australia and west of the Solomon Islands. Its capital is Port Moresby and by some historians it is called the "last frontier". ...
• Para-Aminobenzoic Acid
  para-Aminobenzoic acid (PABA) is a chemical used in sunscreen that is an essential nutrient for some bacteria. It is sometimes called Vitamin B-x, although PABA is not essential for humans and it varies in its activity from other B vitamins. The chemical formula is (COOH)-Ph-NH2 / (C7H7NO2) also known as 4-Amino-benzoic acid and has the chemical structure: PABA is a white crystalline substance that is only slightly soluble in water.
• paracentesis -
  Insertion of a thin needle or tube into the abdomen to remove fluid from the peritoneal cavity.
• Paraflex
  
• Parafon Forte DSC
  
• parageusia -
  A bad taste in the mouth. Also called dysgeusia.
• Paragonimiasis
  
• Paraguay
  The Republic of Paraguay is a landlocked republic in South America. Lying on both banks of the Paraguay River, it borders Argentina to the south and southwest, Brazil to the northeast and Bolivia to the northwest. The name "Paraguay" is derived from the Guarani words "pará", meaning "this side" and "guay", meaning "river". The expression in Guarani is thought to refer solely to Asunción, but in Spanish refers to the entire country.
• Paralube
  
• paralysis - pa-RAL-ih-sis
  Loss of ability to move all or part of the body.
• paramyxovirus -
  A type of virus that has hemagglutinin-neuraminidase proteins in the outer coat and RNA as the genetic material. Measles (rubeola) virus, mumps virus, and Newcastle disease virus are paramyxoviruses.
• Paranasal Sinus and Nasal Cavity Cancer
  
• Paranasal Sinus Cancer
  
• paraneoplastic syndrome - pair-a-nee-o-PLAS-tik
  A group of symptoms that may develop when substances released by some cancer cells disrupt the normal function of surrounding cells and tissue.
• Paraneoplastic Syndromes
  
• Paranoid personality disorder
  Paranoid personality disorder is a psychiatric diagnosis that denotes a personality disorder with paranoid features. The use of the term paranoia in this context is not meant to refer to the presence of frank delusions or psychosis, but implies the presence of ongoing, unbased suspiciousness and distrust of people.
• Paraplegia
  Paraplegia is a condition where the lower half of a patient's body is paralyzed and cannot move. It is usually the result of spinal cord injury or a congenital condition such as spina bifida, but polyneuropathy may also result in paraplegia. If the arms are also paralysed, quadriplegia is a more appropriate diagnosis.
• Paraquat
  Paraquat is a toxic chemical that is widely used as an herbicide (plant killer), primarily for weed and grass control.
• parasite -
  An animal or a plant that lives on or in an organism of another species and gets nutrients from it. A complete parasite gets all of its nutrients from the host organism, but a semi-parasite gets only some of its nutrients from the host.
• Parasite/parasitic Diseases
  
• parasitic -
  Having to do with or being a parasite.
• Parasitic Diseases
  
• Parasitic Infection, Intestinal
  
• Parasitic Roundworm Diseases
  
• Parathyroid Cancer
  
• Parathyroid Disorders
  
• parathyroid gland - pair-a-THIGH-roid
  One of four pea-sized glands found on the thyroid. The parathyroid hormone produced by these glands increases the calcium level in the blood.
• parathyroid hormone - par-a-THI-royd
  A substance made by the parathyroid gland that helps the body store and use calcium. Also called parathormone, parathyrin, or PTH.
• Parathyroidectomy
  Parathyroidectomy is the surgical removal of one or more parathyroid glands. It is used in primary tumors or hyperplasia of the glands, especially when they produce excessive parathyroid hormone.
• parenchyma - pah-REN-kih-ma
  The essential or functional elements of an organ.
• Parenteral Nutrition
  Total parenteral nutrition (TPN), also called hyperalimentation, is the practice of feeding a person without using the gut. It is normally used during surgical recoveries. It has been used for patients in coma, although enteric (tube) feeding is usually adequate, and less prone to complications. Chronic TPN is occasionally used treat people suffering the extended consequences of an accident or surgery. ...
• Parenting
  Parenting comprises all the tasks involved in raising a child to an independent adult. Parenting begins even before the child is born or adopted and may last until the death of the parent or child. Parenting is a part of the relationship within a family.
• paresthesias -
  Abnormal touch sensations, such as burning or prickling, that occur without an outside stimulus.
• paricalcitol - par-i-KAL-si-tol
  A substance that is being used to treat overactive parathyroid glands in patients with kidney failure. It is also being studied in the treatment of cancer. Paricalcitol belongs to the family of drugs called vitamin D analogs.
• parietal pericardium -
  The outer layer of the pericardium, which is a thin sac of tissue that surrounds the heart.
• Parkinson disease
  Parkinson disease is a progressive disorder of the central nervous system. The disorder affects several regions of the brain, including an area called the substantia nigra that controls balance and movement. Parkinson disease may also affect regions of the brain that regulate involuntary functions such as blood pressure and heart activity. Often the first symptom of Parkinson disease is trembling or shaking (tremor) of a limb, especially when the body is at rest. Typically, the tremor begins on one side of the body, usually in one hand. Tremors can also affect the arms, legs, feet, and face. Other characteristic symptoms include rigidity or stiffness of the limbs and trunk, slow movement (bradykinesia) or inability to move (akinesia), and impaired balance and coordination (postural instability). Many Parkinson disease symptoms occur when nerve cells (neurons) in the substantia nigra die or become impaired. Normally, these cells produce a chemical messenger called dopamine, which transmits signals within the brain to produce smooth physical movements. When these dopamine-producing neurons die or become impaired, communication between the brain and muscles weakens, and eventually, the brain is unable to control muscle movement. In most cases of Parkinson disease, protein deposits called Lewy bodies appear in dead or dying dopamine-producing neurons. It is unclear whether Lewy bodies play a role in killing nerve cells, or if they are part of a repair process. Generally, individuals with symptoms that begin before the age of 20 years are considered juvenile-onset cases. Individuals with an onset of the disorder before age 50 are classified as early-onset cases, and late-onset cases are those that first display symptoms after age 50.
• Parkinson''''s
  
• Parkinson's disease -
  A progressive disorder of the nervous system marked by muscle tremors, muscle rigidity, decreased mobility, stooped posture, slow voluntary movements, and a mask-like facial expression.
• Parkinson's Disease Medications
  
• Parmyotonia Congenita
  
• Parnate
  
• Paromomycin
  (par·o·mo·my·cin) (par¢o-mo-mi²sin) an aminoglycoside antibiotic derived from Streptomyces rimosus var. paromomycinus, which is effective against a wide variety of gram-negative, gram-positive, and acid-fast bacteria.
• Parotid Gland Disorders
  
• parotidectomy -
  Surgery to remove all or part of the parotid gland (a large salivary gland located in front of and just below the ear). In a radical parotidectomy, the entire gland is removed.
• Paroxetine
  Paroxetine (paroxetine hydrochloride; trade names Paxil® (United States), Seroxat® (UK), Aropax® (Australia)) is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) type. It was released onto the market in 1992 by the pharmaceutical company GlaxoSmithKline and has since become one of the most prescribed antidepressants on the market. It is the second most prescribed anti-depressant in the UK. ...
• paroxetine hydrochloride -
  An antidepressant drug.
• Paroxetine Oral Suspension
  
• Paroxysmal Choreoathetosis
  
• Paroxysmal Hemicrania
  
• Parry-Romberg
  
• partial cystectomy - sis-TEK-to-mee
  The removal of the cancer as well as some of the bladder tissue around the tumor. Also called segmental cystectomy.
• partial laryngectomy - PAR-shul lair-in-JEK-tuh-mee
  An operation to remove part of the larynx (voice box).
• partial mastectomy - mas-TEK-toe-mee
  The removal of cancer as well as some of the breast tissue around the tumor and the lining over the chest muscles below the tumor. Usually some of the lymph nodes under the arm are also taken out. Also called segmental mastectomy.
• partial nephrectomy - neh-FREK-tuh-mee
  Surgery to remove part of one kidney or a kidney tumor, but not an entire kidney.
• partial oophorectomy - o-o-for-EK-toe-mee
  Surgery to remove part of one ovary or part of both ovaries.
• partial remission -
  A decrease in the size of a tumor, or in the extent of cancer in the body, in response to treatment. Also called partial response.
• partial response -
  A decrease in the size of a tumor, or in the extent of cancer in the body, in response to treatment.
• Parvovirus B19 Infection
  
• Parvovirus infection
  
• Passion Flower
  Passion flower refers to vines in the genus Passiflora—flowering plants known for their showy flowers. The plants were named for the passion of Christ, because the flower structure seemed symbolic of Jesus' scourging, crowning with thorns, and crucifixion. Passion flowers are native to tropical and sub-tropical America. However, a number of species of Passiflora are cultivated outside their natural range (where some have become established) because of their beautiful flowers.
• passive antibody therapy -
  Treatment with injections of antibodies made in another animal or in the laboratory.
• Patacon
  plátano verde frito en rodajas muy delgadas, como "chips" de papa
• Patanol
  Patanol is an antihistamine and mast cell stabilizer whose effect is that of relieving the effects of allergies on the eyes. It is not recommended to make use of this medicine in case of irritations caused by contact lenses. It is to be applied directly on the eyes, rather than taken orally or injected. The usual dose is 1 drop in each affected eye 2 times a day, with 6 to 8 hours between doses.
• Patau syndrome
  Patau syndrome is a chromosomal condition that is associated with severe mental retardation, small eyes that may exhibit a split in the iris (coloboma), a cleft lip and/or palate, weak muscle tone (hypotonia), an increased risk of heart defects, skeletal abnormalities, and other medical problems. Affected individuals rarely live past infancy because of the life threatening medical problems associated with this condition.
• Patent Ductus Arteriosus
  Patent ductus arteriosus (PDA) is a congenital heart defect wherein a child's ductus arteriosus fails to close after birth. Symptoms include shortness of breath and cardiac arrhythmia, and may progress to congestive heart failure if left uncorrected.
• Patent Lean
  
• Paterson-Kelly syndrome -
  A disorder marked by anemia caused by iron deficiency, and a web-like growth of membranes in the throat that makes swallowing difficult. Having Paterson-Kelly syndrome may increase the risk of developing esophageal cancer. Also called Plummer-Vinson syndrome and sideropenic dysphagia.
• Pathocil Suspension
  
• pathologic fracture -
  A broken bone caused by disease, often by the spread of cancer to the bone.
• pathological staging -
  A method used to determine the stage of cancer. Tissue samples are removed during surgery or a biopsy. The stage is determined based on how the cells in the samples look under a microscope.
• pathologist - pa-THOL-o-jist
  A doctor who identifies diseases by studying cells and tissues under a microscope.
• pathology report -
  The description of cells and tissues made by a pathologist based on microscopic evidence, and sometimes used to make a diagnosis of a disease.
• patient advocate -
  A person who helps a patient work with others who have an effect on the patient's health, including doctors, insurance companies, employers, case managers, and lawyers. A patient advocate helps resolve issues about health care, medical bills, and job discrimination related to a patient's medical condition. Cancer advocacy groups try to raise public awareness about important cancer issues, such as the need for cancer support services, education, and research. Such groups work to bring about change that will help cancer patients and their families.
• Patient Issues
  
• patient-controlled analgesia -
  PCA. A method in which the patient controls the amount of pain medicine that is used. When pain relief is needed, the person can receive a preset dose of pain medicine by pressing a button on a computerized pump that is connected to a small tube in the body.
• Pau D'arco
  Tabebuia is a Neotropical genus of about 100 species of large shrubs and trees in the tribe Tecomeae of the family Bignoniaceae. The species range from northern Mexico and the Antilles south to northern Argentina. Most species are on the islands of Hispaniola (Dominican Republic and Haiti) and Cuba.
• Pavabid
  
• Pavulon
  Pancuronium bromide is a chemical compound, used in medicine with the brand name Pavulon® (Organon Pharmaceuticals).
• Paxil
  Paroxetine (paroxetine hydrochloride; trade names Paxil® (United States), Seroxat® (UK), Aropax® (Australia)) is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) type. It was released onto the market in 1992 by the pharmaceutical company GlaxoSmithKline and has since become one of the most prescribed antidepressants on the market. It is the second most prescribed anti-depressant in the UK. ...
• Paxil Suspension
  
• PCA -
  Patient-controlled analgesia. A method in which the patient controls the amount of pain medicine that is used. When pain relief is needed, the person can receive a preset dose of pain medicine by pressing a button on a computerized pump that is connected to a small tube in the body.
• PCE
  PCE may stand for: *Parametric cost estimation*Parliamentary Commissioner for the Environment (New Zealand)*Partial chemical equilibrium*Partial Compliance Evaluation (EPA)*Partido Comunista de España, the Communist Party of Spain*Patrol escort (US Navy hull classification symbol)*Perchloroethylene*Porsche Club Estonia*Power conditioning equipment*Principle of Computational Equivalence*Private Character Editor (Microsoft)*Private consumption expenditure*Personal consumption expenditures ...
• PCOS
  Polycystic ovary syndrome (PCOS, also known clinically as Stein-Leventhal syndrome), is an endocrine disorder that affects 5–10% of women. It occurs amongst all races and nationalities, is the most common hormonal disorder among women of reproductive age, and is a leading cause of infertility. The symptoms and severity of the syndrome vary greatly between women.
• PCP Infection
  
• PDQ -
  Physician Data Query. PDQ is an online database developed and maintained by the National Cancer Institute. Designed to make the most current, credible, and accurate cancer information available to health professionals and the public, PDQ contains peer-reviewed summaries on cancer treatment, screening, prevention, genetics, and supportive care; a registry of cancer clinical trials from around the world; and directories of physicians, professionals who provide genetics services, and organizations that provide cancer care. Most of this information is available on the Cancer.gov Web site. More specific information about PDQ can be found at http://cancer.gov/cancer_information/pdq/.
• Peak Flow Meter
  A peak flow meter is a small, hand-held device used to manage asthma by monitoring lung capacity. The peak flow meter measures the patient’s ability to expel air from the lungs, or peak expiratory flow rate (PEFR). From these changes in measurement, patients and doctors may determine lung functionality, severity of asthma symptoms, and treatment options.
• Peanut Butter Diet
  
• peau d'orange -
  A dimpled condition of the skin of the breast, resembling the skin of an orange, sometimes found in inflammatory breast cancer.
• Pedestrian Injury
  
• PediaCare Fever
  
• PediaCare Fever Suspension
  
• Pediapred
  prednisolone: a glucocorticoid (trade names Pediapred or Prelone) used to treat inflammatory conditions
• Pediarix
  Diphtheria, Tetanus, Acellular Pertussis, Hepatitis B, & Inactivated Poliovirus
• Pediatex
  
• Pediatex-D Liquid
  
• pediatric - pee-dee-AT-rik
  Having to do with children.
• Pediatric Advil Drops
  
• Pediatric Aids
  
• Pediatric Care
  
• pediatric hematologist -
  A doctor who specializes in treating blood disorders in children.
• pediatric nurse specialist -
  A registered nurse with an advanced degree in nursing who specializes in the care of children.
• Pediatric Nutrition Surveillance System
  
• Pediatric Rheumatology Clinic
  
• pediatric surgeon -
  A surgeon who specializes in the treatment of children. A surgeon removes or repairs a part of the body by operating on the patient.
• Pediatrics
  Pediatrics (also spelled paediatrics or pædiatrics) is the branch of medicine that deals with the medical care of infants and children. The word pediatrics is derived from two Greek words paidos which means little boy and iatros which means doctor. ...
• Pediazole
  
• pedigree -
  A record of one's ancestors, offspring, siblings, and their offspring that may be used to determine the pattern of certain genes or disease inheritance within a family.
• Pedometers
  A pedometer or step counter is a device, usually portable and electronic, which counts each step a person makes. Used originally by sports and physical fitness people, pedometers are now becoming popular as an everyman exercise measurer and motivator. Often worn on the belt and kept on all day, it can be observed to see how many steps, thus kilometres/miles the wearer has walked that day. ...
• PedvaxHIB
  
• Peel Away the Pounds
  
• PEG 3350/Electrolyte Solution
  
• PEG percutaneous Endoscopic Gastrostomy
  
• PEG-interferon alfa-2a -
  A substance that is used to treat hepatitis C infections, and is being studied in the treatment of cancer. It belongs to the family of drugs called biological response modifiers.
• PEG-interferon alfa-2b -
  An anticancer drug that belongs to the family of drugs called biological response modifiers. PEG-interferon alfa-2b is a cytokine. Also called SCH 54031.
• Peg-Intron
  A drug used to treat hepatitis C infections. It is also being studied in the treatment and prevention of cancer. It is a cytokine that is modified in the laboratory. It belongs to the family of drugs called biological response modifiers. Also called PEG-interferon alfa-2b and SCH 54031.
• PEG-MGDF -
  A synthetic form of a protein that is normally made in the body to regulate the production of platelets.
• Peganone
  
• pegaspargase -
  A modified form of asparaginase, an anticancer drug that belongs to the family of drugs derived from enzymes.
• Pegasys
  A pegylated interferon drug that mimics naturally occurring “interferon”, which is an infection-fighting immune substance produced by the body. It is self-administered once a week by injection and seems to have fewer side effects than the interferon alpha. Approved for treatment of chronic hepatitis B in May 2005.
• pegfilgrastim -
  A substance that is being studied for its ability to increase numbers of white blood cells in people who are receiving chemotherapy. It belongs to the family of drugs called colony-stimulating factors. Also called filgrastim-SD/01.
• Peginterferon alfa-2a
  
• Peginterferon alfa-2b
  
• PEITC -
  Phenethyl isothiocyanate. A naturally occurring compound found in some cruciferous vegetables. It is being studied as an agent to prevent cancer.
• peldesine -
  A substance that is being studied for the treatment of cancer.
• Pelizaeus-Merzbacher Disease
  Pelizaeus-Merzbacher disease (PMD) is a rare central nervous system disorder in which coordination, motor abilities, and intellectual function are delayed to variable extents. The disease is one of a group of genetic disorders called the leukodystrophies that affect growth of the myelin sheath, the fatty covering--which acts as an insulator--on nerve fibers in the brain. ...
• pelvic -
  Having to do with the pelvis (the lower part of the abdomen located between the hip bones).
• Pelvic Disorders
  
• pelvic exam -
  A physical examination of the vagina, cervix, uterus, fallopian tubes, ovaries, and rectum.
• Pelvic Examination
  an internal examination of the uterus, vagina, ovaries, fallopian tubes, bladder, and rectum.
• pelvic exenteration -
  Surgery to remove the lower colon, rectum, and bladder, and create openings (stomata) through which urine and stool are passed out of the body. In women, the cervix, vagina, ovaries, and nearby lymph nodes are also removed.
• Pelvic Floor Exercises
  Exercises which involve contraction and relaxation of the pelvic floor muscles. They are aimed at strengthening the muscles and enabling increased urethral closure pressure.
• Pelvic Inflammatory
  
• Pelvic Inflammatory Disease
  Pelvic inflammatory disease (or disorder) (PID) is a generic term for infection of the female uterus, fallopian tubes, and/or ovaries as it progresses to scar formation with adhesions to nearby tissues and organs. This may lead to tissue necrosis with/or without abscess formation. Pus can be released into the peritoneum. 2/3 of patients with laparoscopic evidence of previous PID were not aware they had had PID (Cecil's 5th ed). ...
• Pelvic Inflammatory Disease/pid
  
• pelvic lymphadenectomy - lim-FAD-eh-NEK-tah-me
  Surgery to remove lymph nodes in the pelvis for examination under a microscope to see if they contain cancer.
• Pelvic Support Problems
  
• pelvis -
  The lower part of the abdomen, located between the hip bones.
• pemetrexed disodium -
  An anticancer drug that belongs to the family of drugs called enzyme inhibitors. Also called LY231514.
• Pemoline
  Pemoline is a medication for ADHD. It is marketed under the brand name "Cylert." Pemoline is a Schedule IV drug under the Convention on Psychotropic Substance.
• Pena Shokeir II Syndrome
  
• Penciclovir Cream
  
• penclomedine -
  An anticancer drug that belongs to the family of drugs called alkylating agents.
• Pendred syndrome
  Pendred syndrome is a genetic condition associated with deafness and goiter (an enlargement of the thyroid gland, which is a structure in the lower neck that produces hormones). Some people with Pendred syndrome also have malformations of the inner ear.
• penicillamine -
  A drug that removes copper from the body and is used to treat diseases in which there is an excess of this metal. It is also being studied as a possible angiogenesis inhibitor in brain tumors.
• penicillin -
  An antibiotic drug used to treat infection.
• Penicillin G Potassium
  a salt of penicillin G, administered orally and by intravenous injection or infusion.
• Penicillin V Oral Solution
  
• Penicillin V Potassium
  [USP] the potassium salt of penicillin V, administered orally.
• Penicillin VK Solution
  
• Penile Disorders
  
• penile implant -
  A firm rod or inflatable device that is placed in the penis during a surgical procedure. The implant makes it possible to have and keep an erection. Penile implants are used to treat erectile dysfunction or impotence.
• penis -
  An external male reproductive organ. It contains a tube called the urethra, which carries semen and urine to the outside of the body.
• Penis Disorders
  
• Penlac
  
• Pennsylvania
  Pennsylvania (the Commonwealth of Pennsylvania) is one of four states of the United States of America that is called a commonwealth. It has given its name to the Pennsylvanian time period in geology. Pennsylvania is called the Keystone State.
• Pennyroyal
  The herb Pennyroyal (Mentha pulegium, Lamiaceae), is a member of the mint genus; an essential oil extracted from it is used in aromatherapy. Pennyroyal has a traditional folk medicine use in inducing abortions and is an abortifacient.
• Pension
  A pension (also known as superannuation) is a retirement plan intended to provide a person with a secure income for life. Although a lottery may provide a pension, the common use of the term is to describe the payments a person receives upon retirement.
• Pentam 300 Injection
  
• Pentamidine Inhalation
  
• Pentamidine Isethionate Injection
  
• Pentazocine Injection
  
• Pentazocine Tablets
  
• pentetic acid calcium -
  A drug that protects healthy tissues from the toxic effects of anticancer drugs.
• Penthrane
  (Pen·thrane) (pen¢thr[amacr]n) trademark for a preparation of methoxyflurane.
• Pentobarbital Elixir
  
• Pentobarbital Injection
  
• Pentobarbital Oral
  
• Pentobarbital Suppositories
  
• pentosan polysulfate -
  A drug used to relieve pain or discomfort associated with chronic inflammation of the bladder. It is also being evaluated for its protective effects on the gastrointestinal tract in people undergoing radiation therapy.
• Pentosan Polysulfate Sodium
  
• pentostatin -
  An anticancer drug that belongs to the family of drugs called antimetabolites.
• Pentothal
  Sodium thiopental also called sodium pentothal (a trademark of Abbott Laboratories), thiopental, thiopentone sodium, or trapanal is a rapid-onset, short-acting barbiturate general anesthetic.
• pentoxifylline -
  A drug used to prevent blood clotting and as a treatment that may help decrease weight loss in people with cancer.
• Pentrax
  
• Pepcid AC
  
• Pepcid Injection
  
• Pepcid Oral Suspension
  
• Peppermint
  Peppermint (etym. Piperita - Mentha) is a sterile hybrid mint, a cross between watermint and spearmint, with a high menthol content, often used in tea and confectionery. Peppermint is the oldest and most popular flavour of mint flavored confectionery (including chewing gum).
• Peptic Ulcer
  Peptic ulcer is a non-malignant ulcer of the stomach (called gastric ulcer) or duodenum (called duodenal ulcer). By far most instances are now known to be due to Helicobacter pylori, a spiral-shaped bacterium that lives in the acid environment of the stomach. These ulcers can also be caused or worsened by drugs such as Aspirin and other NSAIDs.
• Peptic Ulcer Disease
  an ulcer or breakdown in the lining of in the stomach or duodenum, the first part of the small intestine.
• Peptic Ulceration
  peptic ulcer: an ulcer of the mucous membrane lining of the alimentary tract
• Peptic Ulcers
  Peptic ulcer is a non-malignant ulcer of the stomach (called gastric ulcer) or duodenum (called duodenal ulcer). By far most instances are now known to be due to Helicobacter pylori, a spiral-shaped bacterium that lives in the acid environment of the stomach. These ulcers can also be caused or worsened by drugs such as Aspirin and other NSAIDs.
• peptide -
  Any compound consisting of two or more amino acids, the building blocks of proteins.
• peptide 946 -
  A protein that causes white blood cells to recognize and destroy melanoma cells.
• Pepto Bismal Oral Liquid
  
• Pepto Diarrhea Control
  
• Percutaneous Endoscopic Gastrostomy
  A percutaneous endoscopic gastrostomy (PEG) is a procedure for making an access to the stomach through the abdominal wall. Gastrostomy is any such access, but in PEG it is made using an endoscopy.
• percutaneous ethanol injection - per-kyoo-TAY-nee-us
  An injection of ethanol (alcohol) through the skin directly into the tumor to kill cancer cells.
• Percutaneous Myocardial Revascularization
  
• percutaneous transhepatic biliary drainage -
  A procedure to drain bile to relieve pressure in the bile ducts caused by a blockage. An x-ray of the liver and bile ducts locates the blockage of bile flow. Images made by ultrasound guide placement of a stent (tube), which remains in the liver. Bile drains through the stent into the small intestine or into a collection bag outside the body. This procedure may relieve jaundice before surgery. Also called percutaneous transhepatic cholangiodrainage (PTCD).
• percutaneous transhepatic cholangiodrainage -
  PTCD. A procedure to drain bile to relieve pressure in the bile ducts caused by a blockage. An x-ray of the liver and bile ducts locates the blockage of bile flow. Images made by ultrasound guide placement of a stent (tube), which remains in the liver. Bile drains through the stent into the small intestine or into a collection bag outside the body. This procedure may relieve jaundice before surgery. Also called percutaneous transhepatic biliary drainage.
• percutaneous transhepatic cholangiography - per-kyoo-TAY-nee-us trans-heh-PAT-ik ko-LAN-jee-AH-gra-fee
  PTC. A procedure to x-ray the hepatic and common bile ducts. A contrasting agent is injected into the liver or bile duct, and the ducts are then x-rayed to find the point of obstruction.
• Perdiem Fiber
  
• Perforated eardrum
  an eardrum with a hole or tear in it; can interfere with normal hearing and cause other ear problems
• performance status -
  A measure of how well a patient is able to perform ordinary tasks and carry out daily activities.
• perfusion -
  Bathing an organ or tissue with a fluid. In regional perfusion, a specific area of the body (usually an arm or a leg) receives high doses of anticancer drugs through a blood vessel. Such a procedure is performed to treat cancer that has not spread.
• perfusion magnetic resonance imaging -
  A type of magnetic resonance imaging (MRI) used to check the flow of blood to normal tissue and diseased tissue.
• Pergolide
  Ergoline is a chemical compound whose structure serves as the skeleton for a diverse range of alkaloids and synthetic drugs. Substances derived from ergoline are used clinically as oxytocics and in the treatment of migraine and Parkinson's disease, and are implicated in the disease ergotism and in the action of psychedelic drugs such as ololiuhqui and LSD. ...
• Pergonal
  Pergonal® is a fertility medicine used to stimulate ovarian follicles in infertility treatments, i.e. IVF. It is a preparation of gonadotropins containing follicle stimulating hormone and luteinizing hormone and extracted from the urine of postmenopausal women. It became available in the 1960s through the Serono company. It has been told that initially the company went to Italian convents and asked elderly nuns to establish collection centers. ...
• Peri-Colace
  
• Peri-Colace capsules
  
• Peri-Colace syrup
  
• Peri-Dos Softgels
  
• Periactin Syrup
  
• pericardial effusion -
  An abnormal collection of fluid inside the sac that covers the heart.
• Pericarditis
  inflammation of the pericardium-sac enclosing the heart
• Pericoronitis
  Infection around a partially erupted tooth.
• Peridex
  Chlorhexidine Gluconate is an antiseptic used as an active ingredient in mouthwash designed to kill plaque and other oral bacteria. In some countries it is available by prescription only. It is sometimes marketed under the brand names Peridex, Periochip, Periogard Oral Rinse or in the UK Corsodyl or Chlorohex. Chlorhexidine Gluconate-based products are usually utilized to combat or prevent gum diseases such as gingivitis.
• perifosine -
  An anticancer drug that belongs to the family of drugs called alkylphospholipids.
• perillyl alcohol -
  A drug used in cancer prevention that belongs to the family of plant drugs called monoterpenes.
• perimenopausal -
  The time of a woman's life when menstrual periods become irregular. Refers to the time near menopause.
• Perimenopause
  transition period of waning ovarian function that precedes menopause.
• Perinatal
  refers to the period around the time of birth.
• Perinatal HIV
  
• Perindopril
  fármaco inhibidor de la enzima de conversión de la angiotensina, utulizado en el tratamiento de la hipertensión esencial y la insuficiencia cardíaca
• perineal colostomy -
  An opening made surgically to allow the colon to exit the body through the perineum (the area of the body between the anus and the vulva in females, and between the anus and the scrotum in males). A colostomy provides a new path for waste material to leave the body after part of the colon has been removed.
• perineal prostatectomy - peh-rih-NEE-al pros-ta-TEK-toe-mee
  Surgery to remove the prostate through an incision made between the scrotum and the anus.
• perineum -
  The area of the body between the anus and the vulva in females, and between the anus and the scrotum in males.
• perineural - pear-ih-NOOR-al
  Around a nerve or group of nerves.
• Perineural Cysts
  
• PerioChip
  Chlorhexidine Gluconate is an antiseptic used as an active ingredient in mouthwash designed to kill plaque and other oral bacteria. In some countries it is available by prescription only. It is sometimes marketed under the brand names Peridex, Periochip, Periogard Oral Rinse or in the UK Corsodyl or Chlorohex. Chlorhexidine Gluconate-based products are usually utilized to combat or prevent gum diseases such as gingivitis.
• Periodic Limb Movements in Sleep
  
• Periodic Paralyses
  
• Periodic Paralysis
  
• Periodontal
  Pertaining to the area immediately around a tooth.
• Periodontal (Gum) Disease
  
• Periodontal Disease
  Periodontal disease is the name for bacterial infections of the gums in the mouth. In most cases this disease is linked to poor oral hygiene. Some people however can have a genetic pre-disposition to the disease. The disease once initiated can progress more rapidly in people who have diabetes, especially if the diabetes is poorly controlled.
• Periodontitis
  Periodontal disease is the name for bacterial infections of the gums in the mouth. In most cases this disease is linked to poor oral hygiene. Some people however can have a genetic pre-disposition to the disease. The disease once initiated can progress more rapidly in people who have diabetes, especially if the diabetes is poorly controlled.
• Periodontitis gum disease
  
• Periodontitis periodontal disease
  
• perioperative -
  Around the time of surgery; usually lasts from the time of going into the hospital or doctor's office for surgery until the time the patient goes home.
• Peripheral arterial disease
  A common disorder that occurs in the artery segments of the circulatory system (legs, pelvis, and neck brain). The artery wall linings slowly become narrowed and rough clots formed due to built up cholesterol or plaque. It has major implications on a patient's life due to association with blockages in the heart and brain with potential for death from heart attack and stroke.
• peripheral blood -
  Blood circulating throughout the body.
• peripheral blood lymphocyte therapy -
  A treatment for Epstein-Barr virus infection or overgrowth of white blood cells (lymphocytes) after an organ or bone marrow transplant. Specific lymphocytes from a sibling donor are infused into the patient to try and reverse these conditions.
• Peripheral Blood Stem Cells
  stem cells that reside in the circulating blood
• Peripheral Nerve Disorders
  
• peripheral neuropathy -
  A condition of the nervous system that causes numbness, tingling, burning or weakness. It usually begins in the hands or feet, and can be caused by certain anticancer drugs.
• peripheral primitive neuroectodermal tumor - ...NOO-ro-ek-toe-DER-mul...
  pPNET. A type of cancer that forms in bone or soft tissue. Also called Ewing's sarcoma.
• peripheral stem cell -
  An immature cell found circulating in the bloodstream. New blood cells develop from peripheral stem cells.
• peripheral stem cell support - per-IF-er-al
  A method of replacing blood-forming cells destroyed by cancer treatment. Immature blood cells (stem cells) in the circulating blood that are similar to those in the bone marrow are given to the patient after treatment. This helps the bone marrow recover and continue producing healthy blood cells. Transplantation may be autologous (an individual's own blood cells saved earlier), allogeneic (blood cells donated by someone else), or syngeneic (blood cells donated by an identical twin). Also called peripheral stem cell transplantation.
• peripheral stem cell transplantation - per-IF-er-al
  A method of replacing blood-forming cells destroyed by cancer treatment. Immature blood cells (stem cells) in the circulating blood that are similar to those in the bone marrow are given to the patient after treatment. This helps the bone marrow recover and continue producing healthy blood cells. Transplantation may be autologous (an individual's own blood cells saved earlier), allogeneic (blood cells donated by someone else), or syngeneic (blood cells donated by an identical twin). Also called peripheral stem cell support.
• Peripheral Vascular Disease
  In medicine (vascular surgery), Peripheral artery occlusive disease (PAOD) is a collator for all disease caused by the obstruction of large peripheral arteries, which can result from atherosclerosis, inflammatory processes leading to stenosis, an embolism or thrombus formation.It causes either acute or chronic ischemia.
• Peripheral Vascular Diseases
  Diseases of the vessels of the extremities such as atherosclerosis, resulting in diminished circulation, pain (claudication), or a blood clot, for example.
• peristalsis - pair-ih-STAL-sis
  The rippling motion of muscles in the intestine or other tubular organs characterized by the alternate contraction and relaxation of the muscles that propel the contents onward.
• peritoneal -
  Having to do with the peritoneum (the tissue that lines the abdominal wall and covers most of the organs in the abdomen).
• peritoneal cancer -
  Cancer of the tissue that lines the abdominal wall and covers organs in the abdomen.
• peritoneal cavity -
  The space within the abdomen that contains the intestines, the stomach, and the liver. It is bound by thin membranes.
• Peritoneal Dialysis
  In medicine, dialysis is a method for removing waste such as urea from the blood when the kidneys are incapable of this, i.e. in renal failure.
• Peritoneal Dialysis Dose and Adequacy
  
• peritoneal infusion -
  A method of delivering fluids and drugs directly into the abdominal cavity through a thin tube. Also called intraperitoneal infusion.
• peritoneal perfusion -
  A method of delivering fluids and drugs directly to tumors in the peritoneal cavity.
• peritoneum - PAIR-ih-toe-NEE-um
  The tissue that lines the abdominal wall and covers most of the organs in the abdomen.
• peritonitis -
  Inflammation of the peritoneum (tissue that lines the abdominal wall and covers most of the organs in the abdomen). Peritonitis can result from infection, injury, or certain diseases. Symptoms may include swelling of the abdomen, severe pain, and weight loss.
• Periventricular Leukomalacia
  damage to the white matter of the brain near the ventricles.
• Permethrin
  Permethrin is a common chemical, widely used as an insecticide.It belongs to the family of chemicals called pyrethroids and functions as a neurotoxin, affecting neuron membranes by slowing the access of important sodium ions.
• Permethrin Skin Cream
  
• Permitil
  
• Permitil Oral Concentrate
  
• pernicious anemia - per-NISH-us a-NEE-mee-a
  A type of anemia (low red blood cell count) caused by the body's inability to absorb vitamin B12.
• Perphenazine and Amitriptyline
  
• Perphenazine Injection
  
• Perphenazine Oral
  
• Perphenazine Oral Concentrate
  
• Perricone
  
• Perricone Face Lift
  
• Perricone Nutritional Face Lift
  
• Perricone Promise Diet
  
• Persantine Injection
  
• Persian Gulf War Illnesses
  
• Persistent Vegetative State
  A persistent vegetative state (PVS) is a condition of patients with severe brain damage in whom coma has progressed to a state of wakefulness without detectable awareness. There is controversy in both the medial and legal fields as to whether this condition is irreversible.
• Personal Fitness Trainers
  
• Personal Medical Records
  
• Personal Trainer
  A Personal trainer is a fitness professional who is hired for private instruction. Generally thought to be a commodity afforded only to the rich and famous, a trainer will help his or her employer maintain exquisite physical condition by designing a specialized exercise regiment for said client. Often times they are also dieticians, and can customize healthy meal plans for better eating habits. Often personal trainers become famous themselves because of the celebrities with whom they work. ...
• Personality disorder
  Personality disorders form a class of mental disorders that are characterized by long-lasting rigid patterns of thought and behaviour. Because of the inflexibility and pervasiveness of these patterns, they can cause serious problems and impairment of functioning for the persons who are afflicted with these disorders.
• Personality Disorders
  Personality disorders form a class of mental disorders that are characterized by long-lasting rigid patterns of thought and behaviour. Because of the inflexibility and pervasiveness of these patterns, they can cause serious problems and impairment of functioning for the persons who are afflicted with these disorders.
• Personality Type Diet
  
• Persons with Disabilities
  are people who have disabilities that require accommodation, to enable such persons to perform the essential functions of a job and who consider themselves, and believe an employer or a potential employer would consider them, disadvantaged in finding, retaining or advancing in employment because of that condition. The Saskatchewan Human Rights Commission's policy relating to persons with disabilities as a designated group contains additional information.
• Pertusis
  
• Pertussin
  
• Pertussis
  Pertussis, also known as whooping cough, is a highly contagious disease that is one of the leading causes of vaccine-preventable deaths. There are 30–50 million cases per year, and about 300,000 deaths per year. Virtually all deaths occur in children under one year of age. Ninety percent of all cases occur in developing countries. It is caused by certain species of the bacterium Bordetella—usually B. pertussis, but some cases are caused by B. parapertussis.
• Pertussis/whooping Cough
  
• pertuzumab - per-TOO-zoo-mab
  A monoclonal antibody that is being studied in the treatment of cancer. Monoclonal antibodies are produced in the laboratory and can locate and bind to cancer cells.
• Peru
  Peru (Spanish: República del Perú) is a country in western South America, bordering Ecuador and Colombia to the north, Brazil to the east, Bolivia to the east, south-east and south, Chile to the south, and the Pacific Ocean to the west. Peru is rich in cultural anthropology, and is well-known as the cradle of the Inca empire.
• Pervasive Developmental Disorders
  The diagnostic category pervasive developmental disorders (PDD) refers to a group of disorders characterized by delays in the development of multiple basic functions including socialization and communication. Parents may note symptoms as early as infancy and typically onset is prior to 3 years of age. PDD is not fatal and does not affect normal life expectancy.
• Pesticide Illness Surveillance
  
• Pesticides
  A pesticide is a chemical, or sometimes biological agent such as a virus or bacteria, used to control, to repel, to attract, or to kill pests, which are organisms, including insects, weeds, birds, mammals, fish, and microbes, that compete with humans for food, destroy property, spread disease, or are considered a nuisance. Pesticides are usually, but not always, poisons.
• PET scan -
  Positron emission tomography scan. A procedure in which a small amount of radioactive glucose (sugar) is injected into a vein, and a scanner is used to make detailed, computerized pictures of areas inside the body where the glucose is used. Because cancer cells often use more glucose than normal cells, the pictures can be used to find cancer cells in the body.
• PET Study
  
• Pet Therapy
  The use of pets to induce relaxation. For example, a certified therapy dog will work with a patient to provide emotional comfort and encourage a positive state of mind. The pet may ease discomfort and pain through its affection, play and presence. Pets can also be used for living assistance.
• Petanque
  Pétanque is a form of boules where the goal is to throw metal balls as close as possible to a jack (a small wooden ball called a cochonnet in French, which means piglet). The game is normally played on hard sand/gravel, but can also be played on grass or any other surface. Similar games are bocce and bowls.Pétanque is generally associated with southern France, particularly Provence.Pétanque is the most played sport in France. ...
• petechiae - peh-TEH-kee-a
  Pinpoint, unraised, round red spots under the skin caused by bleeding.
• Petit mal seizure
  In medicine, there are many kinds of generalized seizures. In absence seizures, the person may appear to be staring into space and/or have jerking or twitching muscles. These seizures are sometimes referred to as petit mal seizures, which is an older term. These periods last for seconds, or even tens of seconds. They sometimes move from one location to another without any purpose.
• Pets
  A pet or companion animal is an animal that is kept by humans for companionship and enjoyment, rather than for economic reasons. The most popular are noted for their loyal or playful characteristics or their beautiful appearance or song.
• Pets and Pet Health
  
• Pettigree
  
• Peutz-Jeghers syndrome -
  PJS. A genetic disorder in which polyps form in the intestine and dark spots appear on the mouth and fingers. Having PJS increases the risk of developing gastrointestinal and many other types of cancer.
• Pewterwort
  
• Peyronie's Disease
  Peyronie's disease is a rare connective tissue disorder involving the growth of fibrous plaques in the soft tissue of the penis affecting as much as 1% of men. The exact cause is not known, although it is thought to be caused by injury to the internal cavity of the penis, which results in bleeding and later scar tissue formation at the tunica albuginea of the corpora cavernosa. It may cause pain, cord-like lesions, or abnormal curvature of the penis when erect. ...
• Peyronie//'s disease
  
• Pfeiffer syndrome
  Pfeiffer syndrome is a genetic disorder characterized by the premature fusion of certain bones of the skull (craniosynostosis), which prevents further growth of the skull and affects the shape of the head and face. In addition, the thumbs and big toes are broader and often shorter than normal. Many of the characteristic facial features of Pfeiffer syndrome result from the premature fusion of the skull bones. The head is unable to grow normally, which leads to bulging and wide-set eyes, an underdeveloped upper jaw, and a beaked nose. About 50 percent of children with Pfeiffer syndrome have hearing loss, and dental problems are also common. Additionally, the thumbs and big toes are broader than normal and bend away from the other digits. Unusually short fingers and toes (brachydactyly) are also common, and there may be some webbing or fusion between the digits (syndactyly). Pfeiffer syndrome is divided into three subtypes. Type 1 or "classic" Pfeiffer syndrome has symptoms as described above. Most individuals with type 1 have normal intelligence and a normal life span. Types 2 and 3 are more severe forms of Pfeiffer syndrome, often involving problems with the nervous system. Type 2 is distinguished from type 3 by more extensive fusion of bones in the skull, leading to a "cloverleaf" shaped head.
• Pfiesteria Infections
  
• Pfiesteria piscicida
  Pfiesteria piscicida is a dinoflagellate responsible for many blooms in the 1980s and 1990s on the coast of North Carolina.
• Pfizerpen
  
• phagocyte -
  An immune system cell that can surround and kill microorganisms and remove dead cells. Phagocytes include macrophages.
• Phanatuss DM Syrup
  
• phantom limb pain -
  The sensation of pain or other unpleasant feelings in the place of a missing (phantom) limb.
• Phantom pain
  Phantom pain may occur virtually in any of the extremities of someone's body after having had an amputation of the respective part. In fact, the damage to the ends disturbs signalling along nerves. Under such condition, there is no mental means to distinguish between pain that would have caused in reality and equivalent reception.
• Pharmacogenomics
  Pharmacogenomics is the branch of pharmaceutics which deals with the influence of genetic variation on drug response in patients by correlating gene expression or single-nucleotide polymorphisms with a drug's efficacy or toxicity. By doing so, pharmacogenomics aims to develop rational means to optimise drug therapy, with respect to the patients' genotype, to ensure maximum efficacy with minimal adverse effects. ...
• pharmacokinetics -
  The activity of drugs in the body over a period of time, including the processes by which drugs are absorbed, distributed in the body, localized in the tissues, and excreted.
• Pharmacology
  Pharmacology (in Greek: pharmacon (φάρμακον) is drug, and logos (λόγος) is science) is the study of how chemical substances interact with living systems. If these substances have medicinal properties, they are referred to as pharmaceuticals. The field encompasses drug composition, drug properties, interactions, toxicology, and desirable effects that can be used in therapy of diseases.
• pharmacopoeia -
  A book describing chemicals, drugs, and other substances and how they are used as medicines. It is prepared by a recognized authority.
• Pharmaflur
  
• Pharyngeal Cancer
  
• Pharyngitis
  Pharyngitis is a painful inflammation of the pharynx, and is colloquially referred to as a sore throat. Infection of the tonsils, tonsillitis (American English: tonsilitis) may occur simultaneously.
• pharynx - FAIR-inks
  The hollow tube about 5 inches long that starts behind the nose and ends at the top of the trachea (windpipe) and esophagus (the tube that goes to the stomach).
• phase I trial -
  The first step in testing a new treatment in humans. These studies test the best way to give a new treatment (for example, by mouth, intravenous infusion, or injection) and the best dose. The dose is usually increased a little at a time in order to find the highest dose that does not cause harmful side effects. Because little is known about the possible risks and benefits of the treatments being tested, phase I trials usually include only a small number of patients who have not been helped by other treatments.
• phase I/II trial -
  A trial to study the safety, dosage levels, and response to a new treatment.
• phase II trial -
  A study to test whether a new treatment has an anticancer effect (for example, whether it shrinks a tumor or improves blood test results) and whether it works against a certain type of cancer.
• phase II/III trial -
  A trial to study response to a new treatment and the effectiveness of the treatment compared with the standard treatment regimen.
• phase III trial -
  A study to compare the results of people taking a new treatment with the results of people taking the standard treatment (for example, which group has better survival rates or fewer side effects). In most cases, studies move into phase III only after a treatment seems to work in phases I and II. Phase III trials may include hundreds of people.
• phase IV trial -
  After a treatment has been approved and is being marketed, it is studied in a phase IV trial to evaluate side effects that were not apparent in the phase III trial. Thousands of people are involved in a phase IV trial.
• Phazyme
  
• Phenadex Senior Liquid
  
• Phenaphen with Codeine (No.3 and No.4)
  
• PhenaVent D
  
• PhenaVent LA
  
• Phenazopyridine
  Phenazopyridine is a chemical which, when secreted into the urine, has a specifical local analgesic effect. It is often used to alleviate the pain, irritation, discomfort, or urgency caused by urinary tract infections, surgery, or injury to the urinary tract.
• Phendimetrazine
  Phendimetrazine is a weight loss medication. Phendimetrazine is a Schedule IV drug under the Convention on Psychotropic Substance.
• Phendimetrazine SR
  
• Phenelzine
  Phenelzine is an antidepressant drug that belongs to the monoamine oxidase inhibitor class of drugs.
• Phenerbel-S
  
• Phenergan
  Promethazine (sold as Phenergan and Promethegan) is an antihistamine and anti-nausea medication available by prescription in the United States, and over-the-counter in the United Kingdom. It can be prescribed by itself or in combination with other drugs, such as codeine.
• Phenergan and Codeine
  
• Phenergan DM
  
• Phenergan Injection
  
• Phenergan Rectal Suppositories
  
• Phenergan Syrup
  
• Phenergan VC
  
• Phenergan VC with Codeine
  
• phenethyl isothiocyanate -
  PEITC. A naturally occurring compound found in some cruciferous vegetables. It is being studied as an agent to prevent cancer.
• phenobarbital -
  A sedative/anticonvulsant barbiturate that has been used to treat diarrhea and to increase the antitumor effect of other therapies.
• Phenobarbital Elixir
  
• Phenobarbital Injection
  
• Phenoptic
  
• phenoxodiol -
  A substance that is being studied as a treatment for cancer. It belongs to the family of drugs called signal transduction inhibitors.
• Phenoxybenzamine
  An intravenous medication, typically added to cardiopulmonary bypasss or in the immediate post-operative period, to lower blood pressure by relaxing constriction of the body's arteries, and improve the workload on the heart.
• Phentermine
  Phentermine is a drug that was part of the Fen-phen anti-obesity drug, the other drug being fenfluramine. Fenfluramine was withdrawn from the U.S. market in 1997 after reports of heart valve disease and pulmonary hypertension.
• Phentermine Sustained Release
  
• Phentolamine Injection
  
• phenylacetate -
  A drug being studied in the treatment of cancer.
• Phenylalanine
  The amino acid Phenylalanine exists in two forms, the D- and L- forms. It has a phenyl side chain. L-Phenylalanine(LPA, C9H12NO2) is an electrically neutral amino acid found in proteins, coded for by DNA. Its mirror image, D-phenylalanine (DPA), can be synthesized artificially.
• phenylbutyrate -
  An anticancer drug that belongs to the family of drugs called differentiating agents.
• Phenylephrine and Guaifenesin Capsules
  
• Phenylephrine and Guaifenesin ER Tablets
  
• Phenylephrine and Guaifenesin Liquid
  
• Phenylephrine Eye Solution
  
• Phenylephrine Injection
  
• Phenylephrine Nasal
  
• Phenylephrine, Promethazine and Codeine
  
• Phenylketonuria
  Phenylketonuria (PKU) is a human genetic disorder that occurs in about 1 in 15,000 births, but the incidence varies widely in different human populations from 1 in 4,500 births among the Irish to fewer than one in 100,000 births among the population of Finland.
• Phenytoin
  Phenytoin sodium (marketed as Dilantin® in the USA and as Epanutin® in the UK, by Parke-Davis, now part of Pfizer) is a commonly used antiepileptic. It was approved by the Food and Drug Administration in 1953 for use in seizures.
• Phenytoin Chewable
  
• Phenytoin Injection
  
• Phenytoin Oral Suspension
  
• pheochromocytoma -
  A tumor of the adrenal gland that causes it to produce too much adrenaline. Pheochromocytomas are usually benign (noncancerous), but can cause dangerously high blood pressure and other symptoms, including pounding headaches, heart palpitations, flushing of the face, nausea, and vomiting.
• Pherazine VC
  
• pheresis - fer-E-sis
  A procedure in which blood is collected, part of the blood such as platelets or white blood cells is taken out, and the rest of the blood is returned to the donor. Also called apheresis.
• PHIL
  Phil is a fictional character played by Wallace Langham on the American television series The Larry Sanders Show as the fictional talk show's head writer. Phil's surname is never mentioned in the run of the series.
• Philadelphia chromosome -
  An abnormality of chromosome 22 in which part of chromosome 9 is transferred to it. Bone marrow cells that contain the Philadelphia chromosome are often found in chronic myelogenous leukemia.
• Philippines
  The Republic of the Philippines (Tagalog: Republika ng Pilipinas), or The Philippines (Tagalog: Pilipinas), also known as the Pearl of the Orient Seas, is an independent sovereign nation of southeast Asia. It lies 1,210 km (750 mi) away from mainland Asia consisting of 7,107 islands and forms a part of the Malay Archipelago.
• Phillips' Chewable
  
• PHIN
  
• phlebotomy -
  The puncture of a vein with a needle for the purpose of drawing blood. Also called venipuncture.
• Phos-Flur
  
• Phos-Flur Rinse
  
• Phos-Flur Solution
  
• Phosgene
  Phosgene (also known as carbonyl chloride, COCl2) is a highly toxic gas or refrigerated liquid that was used as a chemical weapon in World War I. It has no color, but is detectable in air by its odor, which resembles moldy hay. It is a manufactured chemical, but small amounts occur naturally from the breakdown of chlorinated compounds. Phosgene can also result from the combustion of chlorine-containing organic compounds.
• Phosgene Oxime
  
• Phoslo Capsules
  
• Phoslo Gelcaps
  
• Phosphine
  Phosphine is the common name for phosphorus hydride (PH3), also known by the IUPAC name phosphane. It is a colorless, flammable gas with a boiling point of −88 °C at standard pressure. Pure phosphine is odorless, but "technical grade" phosphine has a highly unpleasant odor like garlic or rotting fish, due to the presence of substituted phosphine and diphosphine (P2H4).
• phosphorous - FOS-for-us
  Having to do with or containing the element phosphorus.
• phosphorus - FOS-for-us
  A nonmetallic element that is found in the blood, muscles, nerves, bones, and teeth and is a component of adenosine triphosphate (ATP; the primary energy source for the body's cells).
• Phosphorus, Elemental, White or Yellow
  
• phosphorus-32 -
  A radioactive form of phosphorus used in the treatment of cancer. It is also used to help locate areas of DNA damage.
• photoactivity -
  The effect produced when certain substances are exposed to light. In cancer treatment, some drugs become active when exposed to light and are then able to kill tumor cells.
• Photodermatitis
  Photodermatitis is a reaction of the skin to UV rays of the sun. It may be caused by a medication that makes the skin more sensitive, a skin product (ie sunscreen containing PABA, certain fragrances), or a vitamin deficiency. Doctors can determine the presence of the disorder through a photo test.
• photodynamic therapy - foe-toe-dye-NAM-ik
  Treatment with drugs that become active when exposed to light. These drugs kill cancer cells.
• photofrin -
  A drug used in photodynamic therapy that is absorbed by tumor cells. When absorbed by cancer cells and exposed to light, photofrin becomes active and kills the cancer cells.
• photopheresis -
  A procedure in which blood is treated outside the body, with ultraviolet light and drugs that become active when exposed to light, and then returned to the body. It is being studied as a treatment for some blood and bone marrow diseases and graft-versus-host disease (GVHD). Also called extracorporeal photophoresis.
• photophobia -
  A condition in which the eyes are more sensitive to light than normal.
• Photorefractive Keratectomy
  PRK, an acronym for PhotoRefractive Keratectomy, is an eye surgery procedure intended to reduce a person's dependency on glasses or contact lenses.
• photosensitizer -
  A drug used in photodynamic therapy. When absorbed by cancer cells and exposed to light, the drug becomes active and kills the cancer cells.
• Phrenilin with Caffeine and Codeine
  
• phyllodes tumor -
  A type of tumor found in breast tissue. It is often large and bulky and grows quickly. It is usually benign (not cancer), but may be malignant (cancer). Also called cystosarcoma phyllodes.
• Physical Acitvity Surveys &
  
• Physical Activity
  Any form of exercise or movement. Physical activity may include planned activity such as walking, running, basketball, or other sports. Physical activity may also include other daily activities such as household chores, yard work, walking the dog, etc. It is recommended that adults get at least 30 minutes and children get at least 60 minutes of moderate physical activity most days of the week. ...
• Physical Activity for Seniors
  
• Physical Activity, Lack of
  
• Physical education
  Physical educators teach physical fitness and exercise.
• physical examination -
  An exam of the body to check for general signs of disease.
• Physical manipulation
  
• physical therapist -
  A health professional who teaches exercises and physical activities that help condition muscles and restore strength and movement.
• physical therapy -
  The use of exercises and physical activities to help condition muscles and restore strength and movement. For example, physical therapy can be used to restore arm and shoulder movement and build back strength after breast cancer surgery.
• Physician Assisted Suicide
  
• Physician Data Query -
  PDQ. The Physician Data Query is an online database developed and maintained by the National Cancer Institute. Designed to make the most current, credible, and accurate cancer information available to health professionals and the public, PDQ contains peer-reviewed summaries on cancer treatment, screening, prevention, genetics, and supportive care; a registry of cancer clinical trials from around the world; and directories of physicians, professionals who provide genetics services, and organizations that provide cancer care. Most of this information is available on the Cancer.gov Web site. More specific information about PDQ can be found at http://cancer.gov/cancer_information/pdq/.
• Physician Referrals
  
• Physicians Weight Loss Centers
  
• physiologic -
  Having to do with the functions of the body. When used in the phrase "physiologic age," it refers to an age assigned by general health, as opposed to calendar age.
• Physiotherapy
  Physiotherapy (also known as physical therapy) is a health profession concerned with the assessment, diagnosis, and treatment of disease and disability through physical means. It is based upon principles of medical science, and is generally held to be within the sphere of conventional (rather than alternative) medicine. ...
• Physostigmine Injection
  
• Physostigmine Ophthalmic
  
• Phytanic Acid Storage Disease
  
• phytic acid -
  A substance that has been studied as a treatment for cancer. Phytic acid is found in large amounts in cereals and legumes. Also known as inositol hexaphosphate.
• phytochemical -
  A chemical found in plants. Many phytochemicals are thought to reduce a person's risk of getting cancer.
• phytoestrogen -
  An estrogen-like substance found in some plants and plant products. Phytoestrogens may have anticancer effects.
• Phytoestrogens
  Phytoestrogens are trace substances in our food which mimic and supplement the action of the body's own hormone, estrogen (sometimes spelt as 'oestrogen'). They are a comparatively recent discovery, and researchers are still exploring the nutritional role of these substances in such diverse metabolic functions as the regulation of cholesterol, and the maintaining of proper bone density post menopause.
• Phytonadione Injection
  
• Phytonadione Oral
  
• Phytostanol
  
• phytosterol -
  A plant-based compound that can compete with dietary cholesterol to be absorbed by the intestines, resulting in lower blood cholesterol levels. Phytosterols may have some effect in cancer prevention. Also called plant sterol.
• PI-88 -
  A substance that is being studied in the treatment of cancer. It belongs to the family of drugs called antiangiogenesis agents.
• PIB
  Yucatecan pit barbecue; barbecued.
• Pick's Disease
  Pick's disease is a type of dementia brought about by detoriation of the temporal and frontal lobes of the brain.
• Pick//'s Disease
  
• Picture Perfect
  
• Picture Perfect Diet
  
• Pid
  PID stands for a number of things, including:*pelvic inflammatory disease*Primary Immune Deficiency*principal ideal domain in mathematics*process identifier in the UNIX system*Proportional-Integral-Derivative controller*Pathways Into Darkness a game by Bungie Studios*Photo Ionization Detector*Pid a nick-name, frequently the short form of Stupid
• Piercing and Tattoos
  Body modification (or body alteration) is the permanent or semi-permanent deliberate altering of the human body for non-medical reasons, such as spiritual or aesthetic. It can range from the socially acceptable decoration (e.g., pierced ears on women in many societies), to religiously mandated (e.g., circumcision in a number of cultures) to the rebellious (e.g., nostril piercings in punk subculture). Opponents of these practices call them disfigurement or mutilation.
• Pierre Robin syndrome with fetal chondrodysplasia
  
• pigment -
  A substance that gives color to tissue. Pigments are responsible for the color of skin, eyes, and hair.
• Pilates
  The Pilates Method is a physical fitness system which was developed in the early 20th century by German-American Joseph Pilates. Joseph Pilates called the method The Art of Contrology, which refers to the way the method encourages the use of the mind to control the muscles.
• Piles
  tons: a large number or amount; "made lots of new friends"; "she amassed a mountain of newspapers"
• Pilocar
  
• pilocarpine -
  A drug used to increase salivation in people who have dry mouth caused by opioids or radiation therapy. Pilocarpine belongs to the family of drugs called alkaloids.
• Pilocarpine Ophthalmic
  
• Pilocarpine Oral
  
• pilocytic - PI-lo-SIT-ik
  Made up of cells that look like fibers when viewed under a microscope.
• Pilonidal Cyst
  A pilonidal cyst is a blanket term for any type of skin infection near the tailbone. These are normally quite painful, generally occur in men, and normally happen in early adulthood. Although usually found near the tailbone, this painful condition can be found in several places, including the navel or the armpit. Development of the condition in a place other than the tailbone is exceedingly rare, however. It usually happens in young people, up to their thirties in age.
• Pilopine HS
  
• pilot study -
  The initial study examining a new method or treatment.
• Pima
  The Pima are a group of Native Americans living in central and southern Arizona and what is now Mexico. Hailing from Uto-Aztecan lingual stock, they were visited very early by Spanish missionaries, and friendly to Anglos. Enemies of the Apache, they farmed by use of irrigation and are known for their basket weaving.
• Pimozide
  Pimozide (Orap®) is an antipsychotic drug. As it has severe side effects, it is considered a drug of last resort, typically prescribed only after the patient has failed to respond to other medications. The side effects include tardive dyskinesia, neuroleptic malignant syndrome and long QT syndrome.
• Pin-Rid
  
• Pin-X
  
• Pinched Nerve
  Spinal nerves emerge from the spinal cord through gaps between the main body of the vertebrae and the facet joints. One frequent cause of back pain is a worn facet joint, which can pinch the spinal nerve.
• Pindolol
  Pindolol (C14H20N2O2) is a beta blocker drug. It treats cardiac arrhythmias and hypertension.
• Pine Bark Extract
  a botanical, has been shown to be a very powerful antioxidant that is even more powerful than either Vitamin C or Vitamin E.
• pineal body -
  A tiny organ in the cerebrum that produces melatonin. Also called pineal gland or pineal organ.
• pineal gland - PIN-ee-al
  A tiny organ in the cerebrum that produces melatonin. Also called pineal body or pineal organ.
• pineal organ -
  A tiny organ in the cerebrum that produces melatonin. Also called pineal body or pineal gland.
• pineal region tumor - PIN-ee-al...
  A type of brain tumor that occurs in or around the pineal gland, a tiny organ near the center of the brain.
• pineoblastoma - PIN-ee-o-blas-TOE-ma
  A fast growing type of brain tumor that occurs in or around the pineal gland, a tiny organ near the center of the brain.
• Pineoblastoma and Supratentorial Primitive Neuroectodermal Tumors, Childhood
  
• pineocytoma - PIN-ee-o-sye-TOE-ma
  A slow growing type of brain tumor that occurs in or around the pineal gland, a tiny organ near the center of the brain.
• Pink Book
  
• pinkeye -
  A condition in which the conjunctiva (membranes lining the eyelids and covering the white part of the eye) become inflamed or infected. Also called conjunctivitis.
• Pinworm
  The pinworm (Genus Enterobius) is a parasitic roundworm of the phylum Nematoda. The best known is the human pinworm, also known as the threadworm Enterobius vermicularis. It is found worldwide and causes the common infection enterobiasis in humans. The adult pinworm male is 1–4 mm in length, while the adult female is 8–13 mm and possess the long, pin-shaped posterior end for which the worm is named.
• Pinworm Infection
  
• Pinworms
  
• Pipecuronium
  
• Piperacillin Sodium and Tazobactam Sodium Injection
  
• Piperacillin Sodium Injection
  
• piperacillin-tazobactam -
  A combination of drugs used to fight infections in people who have cancer. Piperacillin is a synthetic penicillin; tazobactam enhances the effectiveness of piperacillin.
• Pipracil
  piperacillin: a synthetic type of penicillin antibiotic (trade name Pipracil) used for moderate to severe infections
• Pirbuterol Acetate Oral Inhalation
  
• pirfenidone -
  A substance that is being studied in the prevention and treatment of scar tissue caused by radiation therapy. It belongs to the family of drugs called anti-inflammatory agents.
• Piriformis Syndrome
  Piriformis syndrome occurs when the sciatic nerve passes through the piriformis muscle, as opposed to passing below it. This is seen in 12% of the population. Spasm of the piriformis muscle can mimic the pain of sciatica. This can be treated by muscle relaxants.
• piritrexim -
  An anticancer drug.
• Piroxicam
  Piroxicam is a nonsteroidal anti-inflammatory drug used to relieve the symptoms of arthritis, primary dysmenorrhoea, pyrexia; and as an analgesic, especially where there is an inflammatory component.
• Pitcairn Islands
  The Pitcairn Islands are a group of five islands, of which only Pitcairn Island - the largest - is inhabited, in the southern Pacific Ocean, the only remaining British colony in the Pacific. The islands are best known for being the home of the descendants of the Bounty mutineers and the Tahitians who accompanied them, an event retold in numerous books and films. This history is still apparent in the surnames of many of the islanders. ...
• Pitocin
  Pitocin and Syntocinon are synthetic versions of the hormone oxytocin. Oxytocin is produced by pregnant women to cause the uterine contractions that precipitate childbirth. Pitocin is administered if a doctor determines that, for any of a number of reasons, labor needs to be induced, or to hasten a difficult labor.
• Pitta
  Pittas are passerine birds mainly found in tropical Asia and Australasia, although a couple of species live in Africa.
• Pitta-Type
  
• Pituitary Disorders
  
• pituitary gland - pih-TOO-ih-tair-ee
  The main endocrine gland. It produces hormones that control other glands and many body functions, especially growth.
• Pituitary Gland Diseases And Disorders
  
• Pituitary insufficiency
  
• Pituitary Tumor
  Pituitary adenomas are tumors that occur in the pituitary gland, and account for about 10% of intracranial neoplasms. They often remain undiagnosed, and small pituitary tumors are found in 6 to 24 percent of adults at autopsy.
• Pituitary Tumors
  the pituitary gland is a small structure located near the base of the brain. It produces many important hormones. Hormones are powerful chemical messengers that regulate and balance the complex activities of the body. A tumor may affect the amount of these hormone secretions. progressive neurological symptoms - many neurologic conditions are chronic and degenerative - they get worse with time. ...
• pixantrone -
  A substance that is being studied in the treatment of cancer. It belongs to the family of drugs called antitumor antibiotics. Also called BBR 2778.
• PJS -
  Peutz-Jeghers syndrome. A genetic disorder in which polyps form in the intestine and dark spots appear on the mouth and fingers. Having PJS increases the risk of developing gastrointestinal and many other types of cancer.
• PKC412 -
  A substance that is being studied as a treatment for cancer. It belongs to the family of drugs called protein kinase C (PKC) inhibitors.
• Pku
  Phenylketonuria (PKU) is a human genetic disorder that occurs in about 1 in 15,000 births, but the incidence varies widely in different human populations from 1 in 4,500 births among the Irish to fewer than one in 100,000 births among the population of Finland.
• Pku / Phenylketonuria
  
• placebo -
  An inactive substance or treatment that looks the same as, and is given the same way as, an active drug or treatment being tested. The effects of the active drug or treatment are compared to the effects of the placebo.
• placebo-controlled -
  Refers to a clinical study in which the control patients receive a placebo.
• placenta -
  The organ that nourishes the developing fetus in the uterus.
• Placenta Previa
  Placenta praevia (placenta previa AE) is a obstetric complication that can occur in the second or third trimester of pregnancy. It is a leading cause of antepartum haemorrhage (vaginal bleeding) and is characterised by the implantation of the placenta over or near the top of the cervix. It affects approximately 0.5% of all labours.
• placental blood transplantation -
  The transfer of blood from a placenta to an individual whose own blood production system is suppressed. Placental blood contains high levels of stem cells needed to produce new blood cells. It is being studied in the treatment of cancer and severe blood disorders such as aplastic anemia. Also called umbilical cord blood transplant.
• Plague
  #"World Domination" - 8:16#"Murder" - 1:58#"No Time To Win" - 5:29#"Outside" - 3:15#"End Of The Line" - 3:36#"Pictures" - 4:11#"Into Deep Water" - 3:45#"Plague" - 6:12
• Plan B
  Plan B is an operating system designed to work in distributed environments where the set of available resources is different at different points in time.
• Plant Stanol
  Stanol ester is a heterogenous group of chemical compounds known to reduce the level of low-density lipoprotein (LDL) cholesterol in blood when ingested. The starting material is sterols from plants. These are first hydrated to give stanol which is then esterified with a mixture of fatty acids also derived from plants.
• plant sterol -
  A plant-based compound that can compete with dietary cholesterol to be absorbed by the intestines, resulting in lower blood cholesterol levels. Plant sterols may have some effect in cancer prevention. Also called phytosterol.
• Plantago species
  
• Plantain Seed
  
• Plantar neuroma
  
• plasma - PLAS-ma
  The clear, yellowish, fluid part of the blood that carries the blood cells. The proteins that form blood clots are in plasma.
• plasma cell -
  A type of white blood cell that produces antibodies.
• Plasma Cell Neoplasm
  
• Plasma Cell Neoplasm/Multiple Myeloma
  
• plasma membrane -
  The outer membrane of a cell.
• Plasma Metanephrines
  
• plasmacytic -
  Having to do with plasma cells (a type of white blood cells).
• plasmacytoma - PLAS-ma-sye-TOE-ma
  Cancer of the plasma cells (white blood cells that produce antibodies) that may turn into multiple myeloma.
• Plasmacytomas
  
• plasmapheresis - plas-ma-fer-EE-sis
  The process of separating certain cells from the plasma in the blood by a machine; only the cells are returned to the person. Plasmapheresis can be used to remove excess antibodies from the blood.
• Plasmodium Infection
  
• plastic surgeon -
  A surgeon who specializes in reducing scarring or disfigurement that may occur as a result of accidents, birth defects, or treatment for diseases.
• plastic surgery -
  An operation that restores or improves the appearance of body structures.
• platelet - PLAYT-let
  A type of blood cell that helps prevent bleeding by causing blood clots to form. Also called a thrombocyte.
• Platelet Count
  Counts below 100,000/ml are significant. Platelets can be counted directly, or numbers can be estimated from the blood smear (>5 per oil-immersion field). Decreased platelet numbers (thrombocytopenia) occur with disseminated intravascular coagulation, bone marrow depression, autoimmune hemolytic anemia, systemic lupus erythematosus and severe hemorrhage. ...
• Platelet Function
  
• platinum -
  A metal that is an important component of some anticancer drugs, such as cisplatin and carboplatin.
• Plavix
  Clopidogrel, which is often prescribed under the brand name Plavix ® (clopidogrel bisulfate; produced by Bristol-Myers Squibb and Sanofi-Synthelabo), is a potent oral antiplatelet agent often used in the treatment of coronary artery disease, peripheral vascular disease, and cerebrovascular disease.
• Plenaxis -
  A drug used to reduce the amount of testosterone made in patients with advanced symptomatic prostate cancer for which no other treatment options are available. It belongs to the family of drugs called gonadotropin-releasing hormone (GnRH) antagonists. Also called abarelix.
• Plendil
  Felodipine is a calcium channel blocker (calcium antagonist), a drug used to control hypertension (high blood pressure). It is marketed with the brand name Plendil by AstraZeneca.
• pleomorphic -
  Occurring in various distinct forms. In terms of cells, having variation in the size and shape of cells or their nuclei.
• pleura - PLOOR-a
  A thin layer of tissue covering the lungs and lining the interior wall of the chest cavity. It protects and cushions the lungs. This tissue secretes a small amount of fluid that acts as a lubricant, allowing the lungs to move smoothly in the chest cavity while breathing.
• pleural cavity -
  The space enclosed by the pleura, which is a thin layer of tissue that covers the lungs and lines the interior wall of the chest cavity.
• pleural effusion -
  An abnormal collection of fluid between the thin layers of tissue (pleura) lining the lung and the wall of the chest cavity.
• Pleurisy root
  butterfly weed: erect perennial of eastern and southern United States having showy orange flowers
• pleurodesis - PLOO-ro-DEE-sis
  A medical procedure that uses chemicals or drugs to cause inflammation and adhesion between the layers of the pleura (the tissue that covers the lungs and lines the interior wall of the chest cavity). This prevents the buildup of fluid in the pleural cavity. It is used as a treatment for severe pleural effusion.
• Pleuropulmonary Blastoma
  
• plexiform neurofibroma -
  A nerve that has become thick and misshapen due to the abnormal growth of cells and tissues that cover the nerve.
• plexopathy - pleks-AH-pah-thee
  A disorder affecting a network of nerves, blood vessels, or lymph vessels.
• Plicamycin
  
• ploidy - PLOY-dee
  The number of sets of chromosomes in a cell or an organism. For example, haploid means one set and diploid means two sets.
• Plum blossom
  Plum blossom is the name of both a tool (also called "Seven Star") and a technique in traditional Chinese medicine, as well as a metaphor used by several different Chinese martial arts.
• Plummer-Vinson syndrome -
  A disorder marked by anemia caused by iron deficiency, and a web-like growth of membranes in the throat that makes swallowing difficult. Having Plummer-Vinson syndrome may increase the risk of developing esophageal cancer. Also called Paterson-Kelly syndrome and sideropenic dysphagia.
• pluripotent -
  Able to mature or develop in any of several ways.
• pluripotent stem cell -
  A cell that is able to develop into several different types of cells or tissues in the body.
• pM-81 monoclonal antibody -
  A type of monoclonal antibody used in cancer detection or therapy. Monoclonal antibodies are laboratory-produced substances that can locate and bind to cancer cells.
• Pmdd
  PMDD is a severe form of premenstrual syndrome (PMS) that affects about 3-5% of menstruating women. Emotional symptoms of PMDD include shifting moods; severe depression; feelings of hopelessness, anger, anxiety, or low self-esteem; difficulty concentrating; irritability, and tension. Physical symptoms include fatigue, headaches, joint or muscle pain, breast tenderness, changes in appetite, food cravings or bingeing, sleep problems, and bloating.
• PML
  PML is a three-letter acronym, and may refer to, amongst other things: * Progressive multifocal leukoencephalopathy, a rare and usually fatal disorder* Plymouth Marine Laboratory
• PMR
  Professional or Personal Mobile Radio are radio systems such as TETRA which are designed for dedicated use by specific organisations. Typical examples are the radio systems used by police forces and fire brigades. Key features of professional mobile radio systems include
• Pms
  Premenstrual stress syndrome (PMS, also called Premenstrual stress, Premenstrual tension, PMT and premenstrual syndrome) is stress which is a physical symptom prior to the onset of menstruation.
• PNET -
  Primitive neuroectodermal tumor. One of a group of cancers that develop from the same type of early cells, and share certain biochemical and genetic features. Some PNETs develop in the brain and central nervous system (CNS-PNET), and others develop in sites outside of the brain such as the limbs, pelvis, and chest wall (peripheral PNET).
• pneumatic larynx - noo-MAT-ik LAIR-inks
  A device that is used to help a person talk after a laryngectomy. It uses air to produce a humming sound, which is converted to speech by movement of the lips, tongue, or glottis.
• Pneumococcal Polyvalent Vaccine
  
• Pneumococcal Vaccine
  recommended for people over age 65, or those who have a chronic illness, such as diabetes or sickle-cell disease
• Pneumoconioses
  Examples: Silicosis, asbestosis and other asbestos-related diseases, coal worker's pneumoconiosis, byssinosis, siderosis, and other pneumoconioses.
• Pneumocystis Carinii Infections
  
• Pneumocystis Carinii Pneumonia
  Pneumocystis jiroveci pneumonia (PCP) is a form of pneumonia which is caused by a microorganism called Pneumocystis jiroveci (formerly known as Pneumocystis carinii). It is relatively rare in normal, immunocompetent people but common among people infected with HIV (the virus which causes AIDS). ...
• pneumonectomy - noo-mo-NEK-toe-mee
  An operation to remove an entire lung.
• pneumonia - noo-MONE-ya
  An inflammatory infection that occurs in the lung.
• Pneumotussin HC Syrup
  
• Pneumotussin Tablets
  
• PNU 166148 -
  A drug that belongs to the family of drugs called topoisomerase inhibitors. It is being studied for its ability to treat cancer.
• PNU-93914 -
  A substance that is being studied as a treatment for cancer. It belongs to the family of drugs called topoisomerase inhibitors.
• Podofilox
  
• Podofilox Gel
  
• Point-Two
  
• Point-Two Rinse
  
• Poison Ivy
  Poison-ivy (Toxicodendron radicans or Rhus toxicodendron), in the family Anacardiaceae, is a woody vine that is well-known for its ability to produce urushiol, a skin irritant which for most people will cause an agonizing, itching rash.
• Poison Ivy, Oak and Sumac
  
• Poison Oak/Ivy
  
• Poisoning
  the act of giving poison to a person or animal with the intent to kill
• Poisoning (For First
  the act of giving poison to a person or animal with the intent to kill
• Poisoning (For First Aid)
  the act of giving poison to a person or animal with the intent to kill
• Poisoning, Toxicology, Environmental Health
  
• Poisons in the Home
  
• Poland
  The Republic of Poland is a country located in Central Europe, between Germany to the west, the Czech Republic and Slovakia to the south, Ukraine and Belarus to the east, and the Baltic Sea, Lithuania and Russia (in the form of the Kaliningrad Oblast exclave) to the north. A Polish state existed 1,000 years ago, and in the 16th century under the Jagiellonian dynasty Poland was one of the richest and most powerful countries in Europe. ...
• Policy
  A policy is a plan of action for tackling political issues. It is often initiated by a political party in government, which undergoes reforms and changes by interested actors (for example, opposition parties and lobby groups). Policy designates a process. This process includes the elaboration of programs by different, usually public and private collective actors and the way the programs are then applied as concrete programs and actions. ...
• polifeprosan 20 carmustine implant -
  A biodegradable wafer that is used to deliver the anticancer drug carmustine directly into a brain tumor site after the tumor has been removed by surgery. Also called Gliadel Wafers.
• Polio
  Poliomyelitis ("polio"), or infantile paralysis, is a viral paralytic disease. The causative agent, a virus called poliovirus (PV), enters the body orally, infecting the intestinal lining. It may proceed to the blood stream and into the central nervous system causing muscle weakness and often paralysis.
• Polio and Post-Polio Syndrome
  Poliomyelitis ("polio"), or infantile paralysis, is a viral paralytic disease. The causative agent, a virus called poliovirus (PV), enters the body orally, infecting the intestinal lining. It may proceed to the blood stream and into the central nervous system causing muscle weakness and often paralysis.
• Polio Vaccine
  Two polio vaccines are used throughout the world to combat polio. The first was invented by Jonas Salk and first tested in 1952 and announced to the world by Salk on April 12, 1955. It consists of an injected dose of killed polio virus. Albert Sabin produced an oral polio vaccine using live but weakened virus in 1962.
• Polio Vaccine &
  
• Polio Vaccine, Live
  
• poliomyelitis
  Poliomyelitis ("polio"), or infantile paralysis, is a viral paralytic disease. The causative agent, a virus called poliovirus (PV), enters the body orally, infecting the intestinal lining. It may proceed to the blood stream and into the central nervous system causing muscle weakness and often paralysis.
• Poliomyelitis (Polio) Vaccine
  
• Pollen
  Pollen is a fine to coarse powder consisting of microgametophytes (pollen grains), which carry the male gametes of seed plants. Each pollen grain contains one or two generative cells (the male gametes) and a vegetative cell. The group of three cells is surrounded by a cellulose cell wall and a thick, tough outer wall made of sporopollenin.
• Pollution
  Pollution is the release of harmful environmental contaminants, or the substances so released. Generally the process needs to result from human activity to be regarded as pollution. Even relatively benign products of human activity are liable to be regarded as pollution, if they precipitate negative effects later on. The nitrogen oxides produced by industry are often referred to as pollution, for example, although the substances themselves are not harmful. ...
• Polocaine
  
• Polocaine MPF
  
• poly-ICLC -
  A substance that is being studied as a treatment for cancer and as an immune system stimulant. It is made in the laboratory by combining the nucleic acid RNA with the chemicals poly-L-lysine and carboxymethyl cellulose.
• Poly-Tussin
  
• Polychondritis
  
• Polycillin
  ampicillin: semisynthetic penicillin (trade names Principen and Polycillin and SK-Ampicillin)
• Polycitra-K
  
• Polycystic kidney disease
  Polycystic kidney disease is a hereditary disorder that affects the kidneys and other organs. Clusters of fluid-filled sacs, called cysts, develop in the kidneys and interfere with their ability to filter waste products from the blood. The growth of cysts causes the kidneys to become enlarged and can lead to kidney failure. Cysts may also develop in other organs, particularly the liver. Frequent complications of polycystic kidney disease include dangerously high blood pressure (hypertension), pain in the back or sides, blood in the urine (hematuria), recurrent urinary tract infections, kidney stones, and heart valve abnormalities. Additionally, people with polycystic kidney disease have an increased risk of an abnormal bulging (called an aneurysm) in a large blood vessel called the aorta or in blood vessels in the brain. Aneurysms can be life-threatening if they tear or rupture. The two major forms of polycystic kidney disease are distinguished by their patterns of inheritance. The autosomal dominant form (sometimes called ADPKD) has signs and symptoms that typically begin in adulthood, although cysts in the kidney are often present from childhood. Autosomal dominant polycystic kidney disease can be further divided into type 1 and type 2, depending on which gene is mutated. The autosomal recessive form of polycystic kidney disease (sometimes called ARPKD) is much rarer and is often lethal. The signs and symptoms of the condition are usually apparent at birth or in early infancy.
• Polycystic Ovary Syndrome
  Polycystic ovary syndrome (PCOS, also known clinically as Stein-Leventhal syndrome), is an endocrine disorder that affects 5–10% of women. It occurs amongst all races and nationalities, is the most common hormonal disorder among women of reproductive age, and is a leading cause of infertility. The symptoms and severity of the syndrome vary greatly between women.
• Polyethylene Glycol 3350
  
• Polyethylene glycol-electrolyte solution (PEG-ES)
  
• Polygam S/D
  
• polyglutamate camptothecin -
  A substance that is being studied as a treatment for cancer. It belongs to the family of drugs called camptothecins. Also called CT-2106.
• polyglutamate paclitaxel -
  A protein that can be linked to a chemotherapy drug to deliver the drug directly to the tumor with fewer side effects. It is being studied as a treatment for cancer. Also called CT-2103.
• Polygonum multiflorum
  
• polymerase chain reaction -
  PCR. A laboratory method used to make many copies of a specific DNA sequence.
• polymorphism -
  A common variation or mutation in DNA.
• Polymyalgia Rheumatica and Giant Cell Arteritis
  
• Polymyositis
  == Polymyositis == A type of Inflammatory Myopathy, related to Dermatomyositis and Inclusion body myositis. Polymyositis means 'many muscle inflammation'.
• Polymyxin B Eye Solution
  
• Polymyxin B Injection
  
• Polymyxin B, Bacitracin, and Neomycin
  
• Polymyxin B, Bacitracin, and Neomycin Ophthalmic Ointment
  
• polyneuritis -
  Inflammation of several peripheral nerves at the same time.
• polyp - POL-ip
  A growth that protrudes from a mucous membrane.
• polypectomy - POL-i-PEK-tuh-mee
  Surgery to remove a polyp.
• polyphenol -
  A substance that is found in many plants and gives some flowers, fruits, and vegetables their color. Polyphenols have antioxidant activity.
• Polyphenon® E -
  A substance that is being studied in the prevention of cancer. It is made from decaffeinated green tea, and contains chemicals called catechins, which are antioxidants. Also called green tea extract.
• polyposis -
  The development of numerous polyps (growths that protrude from a mucous membrane).
• Polyps
  In zoology, a polyp is one of two forms of individuals found in many species of cnidarians. The two are the polyp or hydroid and the medusa. Polyps are approximately cylindrical, elongated on the axis of the body. One end is usually attached and the other bears the mouth, surrounded by a circlet of tentacles.
• polysaccharide -
  A type of carbohydrate. It contains sugar molecules that are linked together chemically.
• Polysaccharide Iron Complex
  
• Polysaccharide Iron Complex Elixir
  
• Polytrim Ophthalmic
  
• Pompe Disease
  
• Pompe/'s Disease
  
• Pompe//'s Disease
  
• pons -
  Part of the central nervous system, located at the base of the brain, between the medulla oblongata and the midbrain. It is part of the brainstem.
• Ponstel
  mefenamic acid: a nonsteroidal anti-inflammatory and analgesic drug (trade name Ponstel) used to treat mild pain (especially menstrual cramps)
• Pontiac Fever
  Legionellosis is an infection caused by species of the bacterium Legionella, most notably L. pneumophila. At least 46 species and 70 serogroups have been identified. L. pneumophila, an ubiquitous aquatic organism that thrives in warm environments (32°- 45°C) causes over 90% of Legionnaires Disease in the United States.
• pontine -
  Having to do with the pons (part of the central nervous system, located at the base of the brain, between the medulla oblongata and the midbrain).
• Pontocaine
  
• Pontocaine Injection
  
• Pontocaine Topical
  
• Poor color vision
  
• Poor Nutrition
  
• Popcorn Diet
  
• Popular Diets
  
• Population Groups
  A population group falling within or between certain defined limits: age, gender,education, income, job. In Pharmacoepidemiology, the population is most frequently classified per gender and age groups.
• Population Issues
  
• Porfimer Injection
  
• porfimer sodium -
  An anticancer drug that is also used in cancer prevention. It belongs to the family of drugs called photosensitizing agents.
• porfiromycin -
  An anticancer drug that belongs to the family of drugs called anticancer antibiotics.
• Pork Tapeworm Infection
  
• Porphyria
  Porphyria is a group of at least eight diseases caused by abnormalities in the chemical steps that lead to heme production. Found mostly in the blood, bone marrow, and liver, heme is a vital molecule for all of the body's organs. Heme is a component of hemoglobin, the molecule that carries oxygen in the blood. Genetic changes are related to the following types of porphyria. acute intermittent porphyria ALAD deficiency porphyria congenital erythropoietic porphyria erythropoietic protoporphyria hepatoerythropoietic porphyria hereditary coproporphyria porphyria cutanea tarda variegate porphyria The signs and symptoms of porphyria vary among types. Some types of porphyria (called cutaneous porphyrias) cause the skin to become overly sensitive to sunlight. Areas that are exposed to the sun develop redness, blistering, and often scarring. The clinical features of other types of porphyria (called acute porphyrias) affect the nervous system. Appearing quickly and lasting from days to weeks, these signs and symptoms include chest and abdominal pain, emotional and mental disorders, seizures, and muscle weakness. Some porphyrias have a combination of acute symptoms and symptoms that affect the skin. Environmental factors can strongly influence the occurrence and severity of signs and symptoms in some types of porphyria. Alcohol, smoking, certain drugs, hormones, exposure to sunlight, stress, and dieting or fasting can all trigger the signs and symptoms of the disorder.
• Porphyria cutanea tarda
  Porphyria cutanea tarda is the most common type of porphyria. The disorder results from low levels of the enzyme responsible for the fifth step in heme production. Heme is a vital molecule for all of the body's organs. It is a component of hemoglobin, the molecule that carries oxygen in the blood. Porphyria cutanea tarda is a subtype of porphyria. When signs and symptoms occur, they usually begin in adulthood and result from the skin becoming overly sensitive to sunlight. Areas of skin exposed to the sun develop severe blistering, scarring, changes in pigmentation, and increased hair growth. Exposed skin becomes fragile and is easily damaged. People with porphyria cutanea tarda also have increased iron levels in the liver. They face a higher risk of developing abnormal liver function and liver cancer. The signs and symptoms of this condition are triggered by nongenetic factors such as alcohol abuse, excess iron, certain hormones, and viral infections.
• Porphyrins
  A porphyrin is a heterocyclic macrocycle made from 4 pyrrole subunits linked on opposite sides through 4 methine bridges. The macrocycle, therefore, is completely aromatic, unlike the related corrins or chlorins.
• port -
  An implanted device through which blood may be withdrawn and drugs may be infused without repeated needle sticks. Also called a port-a-cath.
• port-a-cath -
  An implanted device through which blood may be withdrawn and drugs may be infused without repeated needle sticks. Also called a port.
• Portal Hypertension
  In medicine, portal hypertension is hypertension (high blood pressure) in the portal vein and its branches. It is usually the result of cirrhosis of the liver.
• portal vein -
  A blood vessel that carries blood from the digestive organs and the spleen to the liver.
• Portia
  Portia is a name shared by two fictional heroines in plays by William Shakespeare. The better known of the two is the heroine of The Merchant of Venice. This Portia, a rich heiress, is obliged by the terms of her father's will to set a puzzle to all prospective suitors, forcing them to choose between three caskets: of gold, silver and lead. Portia favours Bassanio, but is not allowed to give him any clues to assist in his choice. ...
• Portion Size
  The size of a portion to be served (ie weight or volume)
• Portugal
  The Republic of Portugal (Portuguese: República Portuguesa) is a democratic republic located on the west and southwest parts of the Iberian Peninsula in southwestern Europe, and is the westernmost country in continental Europe. Portugal is bordered by Spain to the north and east and by the Atlantic Ocean to the west and south. In addition, Portugal includes several island territories in the Atlantic, such as the Azores (Açores) and Madeira and Porto Santo (including the Savage Islands).
• positive axillary lymph node -
  A lymph node in the area of the armpit (axilla) to which cancer has spread. This spread is determined by surgically removing some of the lymph nodes and examining them under a microscope to see whether cancer cells are present.
• positive test result -
  A test result that reveals the presence of a specific disease or condition for which the test is being done.
• Positron Emission Tomography
  Positron emission tomography (PET) is a nuclear medicine medical imaging technique which produces a three dimensional image or map of functional processes in the body.
• positron emission tomography scan -
  PET scan. A procedure in which a small amount of radioactive glucose (sugar) is injected into a vein, and a scanner is used to make detailed, computerized pictures of areas inside the body where the glucose is used. Because cancer cells often use more glucose than normal cells, the pictures can be used to find cancer cells in the body.
• Post Traumatic Stress Disorder/ptsd
  
• Postherpetic Neuralgia
  Postherpetic neuralgia is a painful, often excruciating condition caused by the damage that the varicella zoster virus causes to the affected nerves during and after an attack of herpes zoster (shingles). It usually manifests itself after the pustules have started to die down. The pain is not controlled by traditional painkillers such as opiates and other analgesics as it is a fundamental (neuropathic) nerve pain.
• Postinfectious Encephalomyelitis
  
• postmenopausal -
  Refers to the time after menopause. Menopause is the time in a woman's life when menstrual periods stop permanently; also called "change of life."
• Postmenopause
  Phase following menopause. Begins one year after the last period and ends at the age of 65.
• postmortem -
  After death. Often used to describe an autopsy.
• postoperative -
  After surgery.
• Postpartum Health
  
• postprandial -
  After a meal.
• postremission therapy -
  Anticancer drugs given to kill cancer cells that survive after remission induction therapy.
• Postural Hypotension
  Orthostatic hypotension (also known as postural hypotension and, colloquially, as head rush) is a sudden fall in blood pressure that occurs when a person assumes a standing position. Symptoms, which generally occur after sudden standing, include dizziness, lightheadedness, blurred vision, and syncope (temporary loss of consciousness).
• Postural Orthostatic Tachycardia Syndrome
  Postural orthostatic tachycardia syndrome (or POTS) is a condition of orthostatic intolerance in which a change from the supine position to an upright position causes an abnormally high increase in heart rate.
• Postural Tachycardia Syndrome
  
• Potaba
  
• potassium - po-TASS-ee-um
  A metallic element that is important in body functions such as regulation of blood pressure and of water content in cells, transmission of nerve impulses, digestion, muscle contraction, and heartbeat.
• Potassium Chloride Effervescent
  
• Potassium Chloride Injection
  
• Potassium Chloride Oral
  
• Potassium Citrate
  Potassium citrate may be used to control Uric acid kidney stones.
• Potassium cyanide
  Potassium cyanide or KCN is the salt of potassium and hydrogen cyanide. It is a colorless compound with smell of almonds, similar in appearance to sugar and highly soluble in water. Despite being highly toxic, it is one of the few substances that form soluble compounds with gold, and thus is used in jewellery for chemical gilding and buffing. It is also sometimes used in gold mining for chemical extraction of metal from ore (though sodium cyanide is more commonly used). ...
• potassium hydroxide -
  A toxic and highly corrosive chemical used to make soap, in bleaching, and as a paint remover. It is used in small amounts as a food additive and in the preparation of some drugs.
• Potassium Iodide
  Potassium iodide is a white crystalline salt with chemical formula , used in photography and radiation treatment. It finds widespread application as an iodide source because it is less hygroscopic than sodium iodide, making it easier to work with. KI can turn yellow upon heating in air or upon standing in moist air for long periods, because of oxidation of the iodide to iodine.
• Potassium Iodide Oral Solution or Syrup
  
• Potassium Para-Aminobenzoate
  
• potentiation -
  In medicine, the effect of increasing the potency or effectiveness of a drug or other treatment.
• Poverty
  Poverty is the state of being without, often associated with need, hardship and lack of resources across a wide range of circumstances. For some, poverty is a subjective and comparative term; for others, it is moral and evaluative; and for others, scientifically established. The principal uses of the term include:*Descriptions of material need, including deprivation of essential goods and services, multiple deprivation, and patterns of deprivation over time. ...
• Power 90
  
• Power yoga
  A form of yoga with an accelerated succession of yoga body postures.
• Powerful Girls
  
• PR+ -
  Progesterone receptor positive. Breast cancer cells that have a protein (receptor molecule) to which progesterone will attach. Breast cancer cells that are PR+ need the hormone progesterone to grow and will usually respond to hormonal therapy.
• Prader-Willi syndrome
  Prader-Willi syndrome is a complex genetic condition that affects many parts of the body. The condition is characterized in infancy by weak muscle tone (hypotonia), feeding difficulties, poor growth, and delayed development. Beginning in childhood, features of the disorder include excessive eating (hyperphagia), obesity, short stature, mental retardation or learning disabilities, and behavioral problems. Some affected individuals also have unusually fair skin and light-colored hair.
• Pralidoxime
  
• Pramipexole
  
• Pramosone
  
• Pramoxine
  
• Prandin
  
• Pranic healing
  Pranic Healing is the science and art of using prana to heal. Prana [also known as chi/vital energy/universal energy] is the body's life force energy and is distributed around the body via a number of chakras or energy centre.
• Pravachol
  In medicine and pharmacology, pravastatin (Pravachol® or Selektine®) is a member of the drug class of statins, used for lowering cholesterol and preventing cardiovascular disease.
• Pravastatin
  In medicine and pharmacology, pravastatin (Pravachol® or Selektine®) is a member of the drug class of statins, used for lowering cholesterol and preventing cardiovascular disease.
• Pravigard PAC
  
• Prayer
  Prayer is an effort to communicate with God, or to some deity or deities, or another form of spiritual entity, or otherwise, either to offer praise, to make a request, or simply to express one's thoughts and emotions.
• Prayer/Spiritual Healing
  
• Prayer/Spirituality
  
• Praziquantal
  
• Prazosin
  antihypertensive drug (trade name Minipress)
• Pre and Postoperative
  
• Pre/Post-op
  
• Prealbumin
  A tetrameric protein, molecular weight between 50,000 and 70,000, consisting of 4 equal chains, and migrating on electrophoresis in 3 fractions; more mobile than serum albumin. Its concentration ranges from 7 to 33 percent in the serum, but levels decrease in liver disease.
• Prebycusis
  
• precancerous - pre-KAN-ser-us
  A term used to describe a condition that may (or is likely to) become cancer. Also called premalignant.
• precancerous dermatitis -
  A skin disease marked by scaly or thickened patches on the skin, and often caused by prolonged exposure to arsenic. The patches often occur on sunexposed areas of the skin and in older white men. These patches may become malignant (cancerous). Also called Bowen's disease or precancerous dermatosis.
• precancerous dermatosis -
  A skin disease marked by scaly or thickened patches on the skin, and often caused by prolonged exposure to arsenic. The patches often occur on sunexposed areas of the skin and in older white men. These patches may become malignant (cancerous). Also called Bowen's disease or precancerous dermatitis.
• precancerous polyps -
  Growths that protrude from a mucous membrane. Precancerous polyps may (or are likely to) become cancer.
• preclinical study -
  Research using animals to find out if a drug, procedure, or treatment is likely to be useful. Preclinical studies take place before any testing in humans is done.
• Precocious Puberty
  Precocious puberty means early puberty.
• Pred Forte
  
• Pred Mild
  
• predictive factor - pre-DIK-tiv
  A situation or condition that may increase a person's risk of developing a certain disease or disorder.
• Prednicarbate Topical
  
• prednisolone -
  A synthetic corticosteroid used in the treatment of blood cell cancers (leukemias) and lymph system cancers (lymphomas).
• Prednisolone Injection
  
• Prednisolone Liquid
  
• Prednisolone Ophthalmic
  
• Prednisolone Tablets
  
• prednisone -
  Belongs to the family of drugs called steroids and is used to treat several types of cancer and other disorders. Prednisone also inhibits the body's immune response.
• Prednisone Oral
  
• Prednisone Oral Solution or Syrup
  
• Preeclampsia
  Pre-eclampsia (previously called toxemia) is a hypertensive disorder of pregnancy. It is said to exist when a pregnant woman with gestational hypertension develops proteinuria. Originally, edema was considered part of the syndrome of pre-eclampsia, but presently the former two symptoms are sufficient for a diagnosis of pre-eclampsia.
• Prefest
  
• Prefrin Liquifilm
  
• Pregnancy
  Human pregnancy refers to the process by which a human female carries a live offspring from conception until childbirth. The medical term for a pregnant woman is "gravida," just as the medical term for the unborn human is embryo and then fetus.
• Pregnancy and AIDS
  
• Pregnancy and Breast Cancer
  
• Pregnancy and Childbirth
  
• Pregnancy and Diabetes
  
• Pregnancy and Hodgkin's Lymphoma
  
• Pregnancy and Non-Hodgkin's Lymphoma
  
• Pregnancy and Reproduction
  
• Pregnancy and Substance Abuse
  
• Pregnancy Complications
  
• Pregnancy Diet
  
• Pregnancy Loss
  
• Pregnancy Termination
  
• Pregnancy Test
  hCG Home Pregnancy Test Pregnancy tests detect in urine the hormone your body makes during pregnancy: hCG (human chorionic gonadotropin). The amount of pregnancy hormone increases as pregnancy progresses. The FIRST RESPONSE® Test is so sensitive that most women have enough hCG to be detected as early as three days before their expected period, which is four days before any other at-home test.
• Pregnancy, Childbirth, and Bladder Control
  
• Pregnancy, Infections in
  
• Pregnancy-related hypertension
  
• Pregnancy/childbirth
  
• preleukemia - PREE-loo-KEE-mee-a
  A disease in which the bone marrow does not function normally. Also called myelodysplastic syndrome or smoldering leukemia.
• Prelone
  prednisolone: a glucocorticoid (trade names Pediapred or Prelone) used to treat inflammatory conditions
• Prelu-2
  
• premalignant -
  A term used to describe a condition that may (or is likely to) become cancer. Also called precancerous.
• Premarin
  A trademarked prescription for a fixed combination of a hormonal drug containing Premarin and an androgen.
• Premarin Intravenous
  
• Premarin Vaginal Cream
  
• Premature Babies
  Premature birth (also known as preterm birth) is defined medically as birth occurring earlier than 37 completed weeks of gestation. Most pregnancies last about 40 weeks. Premature babies are sometimes called preemies. About 12 percent of babies in the United States - or 1 in 8 - are born prematurely each year. In 2002, more than 480,000 babies in the U.S. were born prematurely. The shorter the term of pregnancy is, the greater the risks of complications. ...
• Premature birth
  Premature birth (also known as preterm birth) is defined medically as birth occurring earlier than 37 completed weeks of gestation. Most pregnancies last about 40 weeks. Premature babies are sometimes called preemies. About 12 percent of babies in the United States - or 1 in 8 - are born prematurely each year. In 2002, more than 480,000 babies in the U.S. were born prematurely. The shorter the term of pregnancy is, the greater the risks of complications. ...
• Premature ejaculation
  Premature ejaculation, the most common sexual problem in men, is characterized by a lack of voluntary control over ejaculation. Masters and Johnson stated that a man suffers from premature ejaculation if he ejaculates before his partner achieves orgasm in more than fifty percent of his sexual encounters. ...
• Premature Menopause
  Menopause (also known as the "Change of life" or climacteric) is a stage of the human female reproductive cycle that occurs as the ovaries stop producing estrogen, causing the reproductive system to gradually shut down. ...
• Premature Ovarian Failure
  A condition in which a woman enters menopause earlier than normal as a result of the ovaries ceasing ovulation and the production of estrogen.
• premenopausal -
  Refers to the time before menopause. Menopause is the time of life when a women's menstrual periods stop permanently; also called "change of life."
• Premenstrual Dysphoric Disorder
  Premenstrual dysphoric disorder (PMDD) is an illness associated with the luteal phase of the menstrual cycle. It is characterized by severe irritability, anxiety and anger. It is similar to premenstrual syndrome (PMS), but differs from it in severity and in that it requires treatment, because it interferes in a woman's ability to function in her environment. It has been proposed as a disorder requiring further study by the American Psychiatric Association in the DSM-IV-TR.
• Premenstrual Syndrome
  Premenstrual stress syndrome (PMS, also called Premenstrual stress, Premenstrual tension, PMT and premenstrual syndrome) is stress which is a physical symptom prior to the onset of menstruation.
• Premphase
  
• Prempro
  
• Prenatal Care
  Prenatal care refers to the medical care recommended for women before and during pregnancy. The aim of good prenatal care is to detect any potential problems early, to prevent them if possible (through recommendations on adequate nutrition, exercise, vitamin intake etc), and to direct the woman to appropriate specialists, hospitals, etc. if necessary. ...
• Prenatal Screening
  
• Prenatal Screening/tests
  
• Prenatal Testing
  Prenatal diagnosis is the diagnosis of disease or condition in a fetus or embryo before it is born. The aim is to detect birth defects such as neural tube problems, chromosomal abnormalities and other conditions to prepare the parents for the birth. Genetic counseling often accompanies prenatal diagnosis.
• Prepidil
  
• Presbycusis
  Age related hearing loss -- also known as presbycusis -- is not single disease but the is the term used for the cumulative effect of ageing on the ears. Most hearing loss begins after the age of 60, and is usually more noticeable in men than women. Both ears tend to be affected. It becomes harder to hear high pitched noises than low pitched noises. The change usually appears gradually over a number of years.
• Presbyopia
  Presbyopia is a condition that occurs with growing age and results in the inability of the human eye to focus on objects up close. Presbyopia is most likely the result of a decrease in the flexibility of the lens of the eye, changes in its curvature from continual growth, and loss of power of the ciliary muscles (the muscles that bend and straighten the lens).
• prescription -
  A doctor's order for medicine or another intervention.
• Prescription Drug Abuse
  
• Prescription Drugs
  A prescription drug is a licensed medicine that is regulated by legislation to require a prescription before it can be obtained. The term is used to distinguish it from over the counter drugs which can be obtained without a prescription. Different jurisdictions have different definitions of what constitutes a prescription drug.
• Prescription Drugs Abuse
  
• Pressure ulcer
  Bedsores, also called pressure sores or decubitus ulcers, are ulcers (sores) caused by prolonged pressure or rubbing on vulnerable areas of the body. Vulnerable areas in this case include bony/cartilaginous areas prone to moisture and friction. Examples include pressure points on the lower back (near the tail bone or sacrum or iliac crest), hips, ankles, heels and elbows, as well as the ear.
• Pressure Ulcers
  Skin wounds caused by prolonged and/or intense physical pressure.
• pretracheal space -
  The area in front of the trachea (windpipe).
• Pretz-D
  
• Prevacid
  lansoprazole: antacid (trade name Prevacid) that suppresses acid secretion in the stomach
• Prevacid Injection
  
• Prevacid NapraPAC
  
• Prevacid Oral Suspension
  
• Prevacid SoluTab
  
• prevascular space -
  The area in the front part of the chest between the lungs. Also called anterior mediastinum.
• Preven
  
• Prevent Diabetes Problems: Keep Your Kidneys Healthy
  
• Prevent Noise-Induced Hearing Loss: Have WISE EARS!
  
• Preventing Chronic Disease Journal
  
• Preventing Disease and Staying Healthy
  
• Preventing Silicosis
  
• Prevention
  Prevention is a magazine about health in the United States.
• Prevention and Cessation of Cigarette Smoking
  
• Prevention and Cessation of Cigarette Smoking: Control of Tobacco Use
  
• Prevention of Vaccine-Preventable Diseases
  
• Prevention Research Centers
  
• Prevention/General Health
  
• preventive -
  Used to prevent disease.
• Preventive Health Care Services for Seniors
  
• preventive mastectomy -
  Surgery to remove one or both breasts in order to decrease the risk of developing breast cancer. Also called prophylactic mastectomy.
• PreviDent Gel
  
• Prevident Plus Gel
  
• PreviDent Rinse
  
• Prevnar
  
• Prevpac
  
• Priapism
  Priapism is a painful and potentially harmful medical condition in which the erect penis (erection) does not return to its flaccid state (despite the absence of both physical and psychological stimulation). The causative mechanisms are poorly understood but involve complex neurological and vascular factors. ...
• Prickly Pear Cactus
  Opuntia is a genus in the cactus family Cactaceae. Both prickly pears and chollas are included in this genus of about 250 species distributed throughout most of the New World. The type species of the genus is the Indian Fig Opuntia Opuntia ficus-indica.
• Prilocaine
  a local anaesthetic that is one of the drugs in EMLA®.
• Prilosec
  Omeprazole is a proton pump inhibitor used in the treatment of dyspepsia, peptic ulcer disease (PUD), GORD and Zollinger-Ellison syndrome. It is marketed by AstraZeneca under the tradenames Losec and Prilosec, commonly as the magnesium salt omeprazole magnesium. Omeprazole is one of the most widely prescribed drugs internationally and is available over the counter in some countries.
• Prilosec OTC
  
• Primacor
  
• Primaquine Phosphate
  
• Primary
  Primary is a 1960 cinema verite documentary film. It covers the 1960 primary election between John F. Kennedy and Hubert H. Humphrey for the United States Democratic Party nomination for President of the United States. Primary (1960) was a breakthrough documentary. Produced by Robert Drew and shot by Richard Leacock, the film featured the contest between Senators John Kennedy and Hubert Humphrey in the 1960 Wisconsin primary. ...
• Primary aldosteronism
  
• Primary Amebic Meningoencephalitis
  a rare and often fatal acute, febrile, purulent meningoencephalitis caused by usually free-living soil and water amebas of the genera Naegleria, Acanthamoeba, or Hartmannella. Infection caused by Naegleria is generally seen in young persons who swim or bathe in contaminated fresh water, the pathogens gaining access to the central nervous system by penetrating the nasal mucosa and cribriform plate and then following the olfactory bulbs and nerves to the brain and meninges. ...
• Primary Biliary Cirrhosis
  Primary biliary cirrhosis is an autoimmune disease of the liver marked by the slow progressive destruction of the small bile ducts within the liver. When these ducts are damaged bile builds up in the liver (cholestasis) and over time damages the tissue. This can lead to scarring, fibrosis, cirrhosis. and ultimately liver failure. It is a rare disease, about 200 out of a million; 10 to 1 women to men, although different references vary widely on these numbers.
• Primary Care
  In medicine, primary care is a term used for a health provider who acts as a first point of consultation for all patients. Generally, primary care physicians are based in the community, as opposed to the hospital. Alternative names for the field are general practice and family medicine, although the terms are not synonymous. General practitioners are physicians who have completed one year of post-medical school training in what has been traditionally described as an "internship. ...
• primary care doctor -
  A doctor who manages a person's health care over time. A primary care doctor is able to give a wide range of care, including prevention and treatment, can discuss cancer treatment choices, and can refer a patient to a specialist.
• primary central nervous system lymphoma -
  Cancer that arises in the lymphoid tissue found in the central nervous system (CNS). The CNS includes the brain and spinal cord.
• Primary CNS Lymphoma
  
• primary endpoint -
  The main result that is measured at the end of a study to see if a given treatment worked (e.g., the number of deaths or the difference in survival between the treatment group and the control group). What the primary endpoint will be is decided before the study begins.
• Primary hyperoxaluria
  Primary hyperoxaluria is a rare condition characterized by the overproduction of a substance called oxalate (or oxalic acid). In the kidneys, the excess oxalate combines with calcium to form calcium oxalate, a hard compound that is the main component of kidney stones. Deposits of calcium oxalate can lead to kidney damage, kidney failure, and injury to other organs. Primary hyperoxaluria is caused by the shortage (deficiency) of an enzyme that normally prevents the buildup of oxalate. There are two types of primary hyperoxaluria, distinguished by the enzyme that is deficient. People with type 1 primary hyperoxaluria have a shortage of a liver enzyme called alanine-glyoxylate aminotransferase (AGXT). Type 2 primary hyperoxaluria is characterized by a shortage of an enzyme called glyoxylate reductase/hydroxypyruvate reductase (GRHPR).
• Primary Immune Deficiency Diseases
  
• Primary Immunodeficiency Disease
  
• Primary Lateral Sclerosis
  A progressive neurological disease in which the upper motor nerve cells deteriorate. If the lower motor neurons are not affected within two years, the disease usually remains a purely upper motor disease.
• primary myelofibrosis -
  A progressive, chronic disease in which the bone marrow is replaced by fibrous tissue and blood is made in organs such as the liver and the spleen, instead of in the bone marrow. This disease is marked by an enlarged spleen and progressive anemia. Also called chronic idiopathic myelofibrosis, agnogenic myeloid metaplasia, myelosclerosis with myeloid metaplasia, and idiopathic myelofibrosis.
• Primary pulmonary hypertension
  Primary pulmonary hypertension is a progressive disorder characterized by abnormally high blood pressure (hypertension) in the arteries of the lungs (pulmonary arteries). "Primary" means that the condition is not caused by other diseases of the heart or lungs.
• Primary Sclerosing Cholangitis
  Primary sclerosing cholangitis (PSC) is an inflammatory disease of the bile duct, which leads to cholestasis (blockage of bile transport to the gut). Bile is necessary for the absorption of dietary fat. Blockage of the bile duct leads to accumulation, damages the liver (leading to jaundice) and eventually causes liver failure. PSC is considered an autoimmune disease.
• primary tumor -
  The original tumor.
• Primatene Mist
  
• Primaxin
  trade name for a parenteral antibiotic
• Primidone
  an anticonvulsant (trade name Mysoline) used to treat grand mal seizures and essential tremor
• Primidone Oral Suspension
  
• primitive neuroectodermal tumor -
  PNET. One of a group of cancers that develop from the same type of early cells, and share certain biochemical and genetic features. Some PNETs develop in the brain and central nervous system (CNS-PNET), and others develop in sites outside of the brain such as the limbs, pelvis, and chest wall (peripheral PNET).
• Primsol Oral Solution
  
• Prince Edward Island
  Prince Edward Island (PEI; French, l'Île-du-Prince-Édouard) is a Canadian province situated in the Maritimes. It is the nation's smallest province in terms of both size and population; it has the highest population density of all Canadian provinces, yet this is only 24.47/km².
• Principen Oral Suspension
  
• Prinivil
  
• prinomastat -
  A substance that is being studied as a treatment for cancer. It belongs to the family of drugs called angiogenesis inhibitors. Prinomastat is a matrix metalloproteinase inhibitor. Also called AG3340.
• Prinzide
  
• Prion disease
  Prion diseases are a group of progressive conditions that affect the brain and nervous system of humans and animals. The disorders cause impairment of brain function, including memory changes, personality changes, and problems with movement that worsen over time. Prion diseases of humans include classic Creutzfeldt-Jakob disease, new variant Creutzfeldt-Jakob disease (a human disorder related to mad cow disease), Gerstmann-Sträussler-Scheinker syndrome, fatal insomnia, and kuru. These conditions form a spectrum of diseases with overlapping signs and symptoms.
• Prion Diseases
  Prion diseases are often called spongiform encephalopathies because of the post-mortem appearance of the brain with large "holes" in the cortex and cerebellum. Examples include: scrapie in sheep; CWD (chronic wasting disease) in elk and other deer; BSE (bovine spongiform encephalopathy) in cattle. Human prion diseases include: CJD (Creutzfeld-Jacob Disease); Kuru; Alpers Syndrome.
• Prism Diet
  
• Pritikin Diet
  The Pritikin Diet was created by Nathan Pritikin and enhanced by his son Robert Pritikin. It is a low-fat, high carbohydrate diet. (cf. Atkins diet) The theory is that we have an instinct to eat fat that was developed in the early days of man. The instinct was useful then because opportunities to eat fat were rare, and the fat helped to store calories to make it through the lean times. ...
• Pritikin Program
  
• Pritikin� Program
  
• Privacy
  Privacy is the ability of an individual or group to stop information about themselves from becoming known to people other than those they choose to give the information to. Privacy is sometimes related to anonymity although it is often most highly valued by people who are publically known. Privacy can be seen as an aspect of security—one in which trade-offs between the interests of one group and another can become particularly clear.
• Pro-Banthine
  
• pro-oxidant -
  A substance that can produce oxygen byproducts of metabolism that can cause damage to cells.
• probenecid -
  A substance that is being studied as a treatment for cancer. It belongs to the family of drugs called antibiotic therapy adjuncts.
• Problem Solving
  Problem solving forms part of thinking. It occurs if an organism or an artificial intelligence system does not know how to proceed from a given state to a desired goal state. It is part of the larger problem process that includes problem finding and problem shaping.
• Procainamide
  Procainamide (trade name Pronestyl®) is a pharmaceutical antiarrhythmic agent used for the medical treatment of cardiac arrhythmias, classified by the Vaughan Williams classification system as class Ia.It blocks open sodium (Na+) channels and prolongs the cardiac action potential (outward potassium (K+) currents may be blocked). ...
• Procainamide ER
  
• Procainamide Injection
  
• Procainamide Oral
  
• Procaine
  Procaine hydrochloride is a local anesthetic used primarily in dentistry. It is primarily known as novocaine, or by the trade name Novocain®.
• Procan SR
  
• Procanbid
  
• procarbazine -
  An anticancer drug that belongs to the family of drugs called alkylating agents.
• Procardia XL
  
• Procedures and Therapies
  
• Prochieve
  
• prochlorperazine - pro-klor-PAIR-a-zeen
  A drug that prevents or reduces nausea and vomiting. It belongs to the family of drugs called antiemetics.
• Prochlorperazine ER
  
• Prochlorperazine Injection
  
• Prochlorperazine Oral Syrup
  
• Prochlorperazine Rectal Suppositories
  
• Proctitis
  (prok-TI-tis). The inflammation of the lining of the rectum that may result from an infection or other cause. In some cases, the cause may be unknown.
• Proctocort
  
• proctoscopy - prok-TOS -ko-pee
  An examination of the rectum using a thin, lighted tube called a proctoscope.
• Proctosigmoidectomy
  the surgical removal of a diseased section of the rectum and sigmoid colon.
• proctosigmoidoscopy - PROK-toe-sig-moid-OSS-ko-pee
  An examination of the rectum and the lower part of the colon using a thin, lighted tube called a sigmoidoscope.
• Profen Forte
  
• Profen II
  
• Profen II DM Liquid
  
• Professionalized modalities
  A professional used in this context is referring to a person engaging in a given activity as a source of livelihood or as a career. It is a provider-based therapy where someone who is knowledgeable about a specific alternative health therapy provides care or gives advice about its use. It refers to all doctor - patient relationships where the professional is functioning in the role of a doctor, whether licensed or not. The professional is providing some type of treatment or therapy which the patient cannot perform on themselves.
• progeny -
  Offspring; the product of reproduction or replication.
• Progeria
  Progeria is an extremely rare genetic condition which causes physical changes that resemble greatly accelerated aging in sufferers. It is an autosomal recessive condition that affects around 1 in 4-8 million newborns. Currently, there are approximately 35 known cases in the world with no known cure. Most children with the disease die around 13 years of age.
• Progest. Receptors
  
• Progestasert
  
• progesterone - pro-JES-ter-own
  A female hormone.
• Progesterone Injection
  
• Progesterone Intrauterine Device
  
• Progesterone Oral
  
• progesterone receptor negative - PR-
  PR-. Breast cancer cells that do not have a protein (receptor molecule) to which progesterone will attach. Breast cancer cells that are PR- do not need the hormone progesterone to grow and usually do not respond to hormonal therapy.
• progesterone receptor positive - PR+
  PR+. Breast cancer cells that have a protein (receptor molecule) to which progesterone will attach. Breast cancer cells that are PR+ need the hormone progesterone to grow and will usually respond to hormonal therapy.
• progesterone receptor test -
  A lab test to determine if breast cancer cells have progesterone receptors. If the cells have progesterone receptors, they may depend on progesterone for growth. This information can influence how the breast cancer is treated.
• Progesterone Vaginal
  
• Progesterone Vaginal Suppositories
  
• Progesterone-containing Medications
  
• progestin - pro-JES-tin
  Any natural or laboratory-made substance that has some or all of the biologic effects of progesterone, a female hormone.
• Proglycem Oral Suspension
  
• prognosis - prog-NO-sis
  The likely outcome or course of a disease; the chance of recovery or recurrence.
• prognostic factor - prog-NOS-tik
  A situation or condition, or a characteristic of a patient, that can be used to estimate the chance of recovery from a disease or the chance of the disease recurring (coming back).
• Prograf Injection
  
• Programs in Brief
  
• progression -
  Increase in the size of a tumor or spread of cancer in the body.
• progression-free survival -
  One type of measurement that can be used in a clinical study or trial to help determine whether a new treatment is effective. It refers to the probability that a patient will remain alive, without the disease getting worse.
• progressive disease -
  Cancer that is increasing in scope or severity.
• Progressive Hemifacial Atrophy
  
• Progressive Locomotor Ataxia
  
• Progressive Multifocal Leukoencephalopathy
  Progressive multifocal leukoencephalopathy (PML), also known as progressive multifocal leukoencephalitis, is a rare and usually fatal disorder that is characterized by progressive damage (-pathy) or inflammation (-itis) of the white matter (leuko-) of the brain (-encephalo-) at multiple locations (multifocal). It occurs almost exclusively in people with severe immune deficiency, e.g. transplant patients on immunosuppressive medications, or AIDS patients. ...
• Progressive relaxation
  "This therapy involves the successive tensing and relaxing of each of the 15 major muscle groups. Performed lying down, one generally begins with the head and progresses downward, tensing each muscle as tightly as possible for a count of 5 to 10 and then releasing it completely. often combined with deep breathing, progressive relaxations is particularly useful for reducing stress, relieving tension, and inducing sleep."
• Progressive Sclerosing Poliodystrophy
  
• Prolactin
  Prolactin is a hormone synthesised and secreted by lactotropes in the adenohypophysis (anterior pituitary gland) which is made up of 199 amino acids with a molecular weight of about 23,000 daltons. Prolactin has many effects, the most significant of which are to stimulate the mammary glands to produce milk (i.e. lactation).
• Prolactinoma
  A prolactinoma is a benign tumor (adenoma) of the pituitary gland that produces a hormone called prolactin. It is the most common type of pituitary tumor. Symptoms of prolactinoma are caused by too much prolactin in the blood (hyperprolactinemia) or by pressure of the tumor on surrounding tissues.
• Prolapse
  Prolapse literally means "To fall out of place." In medicine, prolapse is a condition where organs, such as the uterus, fall down or slip out of place. It is generally reserved for organs protruding through the vagina, or for the misalignment of the valves of the heart.
• Prolex DH
  
• proliferating -
  Multiplying or increasing in number. In biology, cell proliferation occurs by a process known as cell division.
• proliferative index -
  A measure of the number of cells in a tumor that are dividing (proliferating). May be used with the S-phase fraction to give a more complete understanding of how fast a tumor is growing.
• Prolixin
  Fluphenazine (Anatensol®, Dapotum®, Lyogen®, Modecate®, Moditen®, Omca®, Pacinol®, Permitil®, Prolixin®, Siqualone®, Tensofin®, Valamina®) is a typical antipsychotic drug. Fluphenazine is sometimes given via injection, usually once or twice per month.
• Prolixin Decanoate
  
• Prolixin Elixir
  
• Prolixin Enanthate
  
• Prolixin Injection
  
• Prolixin Oral Concentrate
  
• prolymphocytic leukemia -
  PLL. A type of chronic lymphocyctic leukemia (CLL), in which too many immature white blood cells (prolymphocytes) are found in the blood and bone marrow. PLL usually progresses more rapidly than classic CLL.
• promegapoietin -
  A colony-stimulating factor that stimulates the production of blood cells, especially platelets; it is given during chemotherapy to increase blood cell regeneration. Promegapoietin is a cytokine that belongs to the family of drugs called hematopoietic (blood-forming) agents.
• Prometh and Codeine
  
• Prometh VC Plain
  
• Prometh with Dextromethorphan
  
• Promethazine
  Promethazine (sold as Phenergan and Promethegan) is an antihistamine and anti-nausea medication available by prescription in the United States, and over-the-counter in the United Kingdom. It can be prescribed by itself or in combination with other drugs, such as codeine.
• Promethazine and Codeine
  
• Promethazine and Dextromethorphan
  
• Promethazine and Phenylephrine
  
• Promethazine DM
  
• Promethazine Injection
  
• Promethazine Oral
  
• Promethazine Oral Syrup
  
• Promethazine Rectal Suppositories
  
• Promethazine VC with Codeine
  
• Promethegan
  Promethazine (sold as Phenergan and Promethegan) is an antihistamine and anti-nausea medication available by prescription in the United States, and over-the-counter in the United Kingdom. It can be prescribed by itself or in combination with other drugs, such as codeine.
• Prometrium
  Prometrium is a brand of micronized progesterone. It is used as a prescription drug in hormone replacement therapy.
• promyelocytic leukemia -
  A type of acute myeloid leukemia, a quickly progressing disease in which too many immature blood-forming cells are found in the blood and bone marrow.
• Pronestyl
  
• Pronestyl Injection
  
• Pronestyl-SR
  
• Propacet
  
• Propafenone
  Propafenone is a class Ic anti-arrhythmic medication. It is used in the treatment of atrial and ventricular arrhythmias.
• Propafenone ER
  
• Propantheline
  
• prophylactic -
  In medicine, something that prevents or protects.
• prophylactic cranial irradiation - pro-fih-LAK-tik KRAY-nee-ul ir-ray-dee-AY-shun
  Radiation therapy to the head to reduce the risk that cancer will spread to the brain.
• prophylactic mastectomy - pro-fi-LAK-tik mas-TEK-toe-mee
  Surgery to remove one or both breasts in order to decrease the risk of developing breast cancer. Also called preventive mastectomy.
• prophylactic oophorectomy - pro-fi-LAK-tik o-o-for-EK-toe-mee
  Surgery intended to reduce the risk of ovarian cancer by removing the ovaries before disease develops.
• prophylactic surgery -
  Surgery to remove an organ or gland that shows no signs of cancer, in an attempt to prevent development of cancer of that organ or gland. Prophylactic surgery is sometimes chosen by people who know they are at high risk for developing cancer.
• prophylaxis -
  An attempt to prevent disease.
• Propine
  
• Propionic acidemia
  Propionic acidemia is an inherited disorder in which the body is unable to process certain proteins and lipids (fats) properly. The condition, which usually appears in early infancy, is characterized by poor feeding, vomiting, weak muscle tone (hypotonia), and lethargy. The effects of propionic acidemia can be life-threatening.
• Proplex T
  
• Propofol Injection
  
• Propolis
  Propolis is a reddish brown wax-like resinous substance collected by bees from tree buds and used as a cement and to seal cracks or open spaces in the hive.Honeybees will use propolis to attempt to seal any gap inside the hive that is smaller than the bee space, approximately 6.3 mm.
• Propoxyphene
  Dextropropoxyphene is an analgesic in the opioid category that is used to treat severe pain and severe coughs. It can be used to ease pain before, during and after an operation. It is often combined with acetominophen in the preparation co-proxamol.
• Propranolol
  Propranolol (Inderal®) is a non-selective beta blocker (i.e. it blocks the action of adrenalin on both β1- and β2-adrenoreceptors). It has various uses, such as treatment of high blood pressure, prophylaxis of migraine, controlling tremors, suppressing the symptoms of hyperthyroidism (tachycardia, tremor), lowering portal pressure in portal hypertension when this has led to esophageal varices, as well as in the management of anxiety and panic disorders.
• Propranolol Injection
  
• Propranolol Oral Solution
  
• Propulsid Suspension
  
• Propylthiouracil
  Propylthiouracil (PTU) is a thioamide drug used to treat hyperthyroidism. It is a medicine that is used to decrease the amount of thyroid hormone produced by the thyroid gland.
• prospective -
  In medicine, a study or clinical trial in which participants are identified and then followed forward in time.
• prospective cohort study -
  A research study that follows over time groups of individuals who are alike in many ways but differ by a certain characteristic (for example, female nurses who smoke and those who do not smoke) and compares them for a particular outcome (such as lung cancer).
• Prost 30 monoclonal antibody -
  A type of monoclonal antibody used in cancer detection or therapy. Monoclonal antibodies are laboratory-produced substances that can locate and bind to cancer cells.
• prostate - PROS-tate
  A gland in the male reproductive system just below the bladder. The prostate surrounds part of the urethra (the canal that empties the bladder) and produces a fluid that forms part of semen.
• Prostate Diseases
  
• Prostate Enlargement: Benign Prostatic Hyperplasia
  
• Prostate gland enlargement
  
• Prostate Infection
  
• Prostate, Benign Hypertrophy
  
• Prostate, Bngn Hpr
  
• prostate-specific antigen -
  PSA. A substance produced by the prostate that may be found in an increased amount in the blood of men who have prostate cancer, benign prostatic hyperplasia, or infection or inflammation of the prostate.
• prostate-specific antigen test -
  A blood test that measures the level of prostate-specific antigen (PSA), a substance produced by the prostate and some other tissues in the body. Increased levels of PSA may be a sign of prostate cancer.
• prostatectomy - pros-ta-TEK-toe-mee
  An operation to remove part or all of the prostate. Radical (or total) prostatectomy is the removal of the entire prostate and some of the tissue around it.
• prostatic acid phosphatase - FOS-fa-tays
  PAP. An enzyme produced by the prostate. It may be found in increased amounts in men who have prostate cancer.
• prostatic intraepithelial neoplasia - pros-TAT-ik in-tra-eh-pih-THEEL-ee-ul NEE-o-play-zha
  PIN. Noncancerous growth of the cells lining the internal and external surfaces of the prostate gland. It is an important sign that prostate cancer may develop.
• prostatitis - PROS-tah-TITE-is
  Inflammation of the prostate gland.
• Prostatitis: Disorders of the Prostate
  
• ProStep
  The center for STEP in Germany.
• prosthesis - pros-THEE-sis
  A device, such as an artificial leg, that replaces a part of the body.
• Prosthetics
  In medicine, a prosthesis is an artificial extension that replaces a missing part of the body. Contrast with orthosis that supplements the body. Prostheses are typically used to replace parts lost by injury (traumatic) or missing from birth (congenital), supplement defective parts, allow transsexual men to change their outward physical sex, and achieve secondary sex characteristics for transsexual women, and in movie special effects.
• prosthodontist - pros-tho-DON-tist
  A dentist who specializes in replacing missing teeth or other structures of the mouth to restore an individual’s appearance, comfort, or health.
• Prostigmin Injection
  
• Prostigmin Tablets
  
• Prostin E2
  
• Protamine Injection
  
• protease inhibitor -
  A compound that interferes with the ability of certain enzymes to break down proteins. Some protease inhibitors can keep a virus from making copies of itself (for example, AIDS virus protease inhibitors), and some can prevent cancer cells from spreading.
• Protective Eye Equipment
  
• Protective Eye Wear
  
• protein - PRO-teen
  A molecule made up of amino acids that are needed for the body to function properly. Proteins are the basis of body structures such as skin and hair and of substances such as enzymes, cytokines, and antibodies.
• Protein C
  Protein C is a major physiological anticoagulant. It is a vitamin K-dependant serine protease enzyme (EC 3.4.21.69) that is activated by thrombin into activated protein C (APC). The activated form (with protein S as a cofactor) degrades Factor Va and Factor VIIIa.
• Protein Diet
  
• Protein Electro.
  
• protein kinase C -
  PKC. A substance that is being studied in the treatment of cancer. PKC is an enzyme found throughout the body's tissues and organs. There are several forms of PKC that are involved in many cellular functions.
• Protein Power
  
• Protein Power Diet
  
• Protein Power Plan
  
• Protein S
  Protein S is a vitamin K-dependent plasma glycoprotein synthesized in the liver and it functions as a cofactor to Protein C in the inactivation of Factors Va and VIIIa.
• Proteins
  A protein (in Greek πρωτεϊνη = first element) is a complex, high molecular weight organic compound that consists of amino acids joined by peptide bonds. Proteins are essential to the structure and function of all living cells and viruses.Many proteins are enzymes or subunits of enzymes. Other proteins play structural or mechanical roles, such as those that form the struts and joints of the cytoskeleton. ...
• Proteinuria
  Proteinuria (from protein and urine) means the presence of anexcess of serum proteins in the urine.
• proteoglycan -
  A molecule that contains both protein and glycosaminoglycans, which are a type of polysaccharide. Proteoglycans are found in cartilage and other connective tissues.
• proteomic profile -
  An evaluation of proteins in a sample of blood. This may help detect early cancer or cancer recurrence, or help predict response to treatment.
• proteomics -
  The study of the structure and function of proteins, including the way they work and interact with each other inside cells.
• protocol -
  An action plan for a clinical trial. The plan states what the study will do, how, and why. It explains how many people will be in it, who is eligible to participate, what study agents or other interventions they will be given, what tests they will receive and how often, and what information will be gathered.
• proton -
  A small, positively charged particle of matter found in the atoms of all elements. Streams of protons generated by special equipment can be used for radiation treatment.
• proton beam radiation therapy - …ray-dee-AY-shun…
  A type of radiation therapy that uses protons generated by a special machine. A proton is a type of high-energy radiation that is different from an x-ray.
• proton magnetic resonance spectroscopic imaging -
  A noninvasive imaging method that provides information about cellular activity (metabolic information). It is used along with magnetic resonance imaging (MRI) which provides information about the shape and size of the tumor (spacial information). Also called magnetic resonance spectroscopic imaging and 1H-nuclear magnetic resonance spectroscopic imaging.
• Proton-pump Inhibitors
  Chemicals that suppress stomach acid secretion by inhibiting a specific enzyme system on the surface of the stomach's parietal cells. This enzyme system is regarded as the acid (proton) pump within the stomach mucosa (for example, omeprazole [Prilosec®]).
• Protonix Injection
  
• Protopam
  
• Protopic
  Tacrolimus (also FK-506 or Fujimycin) is an immunosuppressive drug. Its main use is after allogenic organ transplant to reduce the activity of the patient's immune system and so the risk of organ rejection.
• Protostat
  
• protozoal -
  Having to do with the simplest organisms in the animal kingdom. Protozoa are single-cell organisms, such as ameba, and are different from bacteria, which are not members of the animal kingdom. Some protozoa can be seen without a microscope.
• Protriptyline
  tricyclic antidepressant used to treat clinical depression
• Protuss
  
• Protuss-D
  
• Proventil HFA
  
• Proventil Inhaler
  
• Proventil Nebulizer Solution
  
• Proventil Oral
  
• Proventil Repetabs
  
• Proventil Syrup
  
• proximal -
  In medicine, refers to a part of the body that is closer to the center of the body than another part. For example, the knee is proximal to the toes. The opposite is distal.
• Prozac Oral Solution
  
• Prunus amygdalus dulcis
  (Almond meal) - Derived from almonds. Provide gentle exfoliation, deep pore cleansing.
• Pruritis
  An itch (Latin: pruritus) is a sensation felt on an area of skin that makes a person or animal want to scratch it.
• Pruritis ani
  
• Pruritus Ani
  Anorectal itching.
• PS-341 -
  A drug that is being studied as a treatment for cancer. It belongs to the family of drugs called dipeptidyl boronic acids. Also called bortezomib.
• PSA -
  Prostate-specific antigen. A substance produced by the prostate that may be found in an increased amount in the blood of men who have prostate cancer, benign prostatic hyperplasia, or infection or inflammation of the prostate.
• psammoma body - sam-O-ma
  A structure found in some benign (noncancerous) or malignant (cancerous) tumor cells. Psammoma bodies look like hardened concentric rings when viewed under a microscope. They can be a sign of chronic inflammation.
• PSC 833 -
  A drug that belongs to the family of drugs called cyclosporine analogs. It is used with chemotherapy to prevent or overcome the resistance of tumor cells to some anticancer drugs.
• PSEN1
  
• Pseubrom
  
• Pseudo-Gaucher disease
  Pseudo-Gaucher disease is an inherited disorder in which the body cannot break down a lipid called glucocerebroside. Although it is caused by defects in the same gene, this condition has different signs and symptoms than the three other recognized types of Gaucher disease. Pseudo-Gaucher disease is a subtype of Gaucher disease. Manifestations of this disease include cardiovascular disease (specifically, calcification of the heart valves), clouding of the corneas (the front surfaces of the eyes), difficulty with eye movements, bone disease, and mild spleen enlargement.
• Pseudo-Obstruction
  
• Pseudoephedrine
  Pseudoephedrine is a sympathomimetic amine commonly used as a decongestant. The salts pseudoephedrine hydrochloride and pseudoephedrine sulfate are found in many over-the-counter preparations either as single-ingredient preparations, or more commonly in combination with antihistamines and/or paracetamol/ibuprofen.
• Pseudoephedrine and Dextromethorphan
  
• Pseudoephedrine and Guaifenesin
  
• Pseudoephedrine and Guaifenesin ER
  
• Pseudoephedrine and Guaifenesin Oral Solution
  
• Pseudoephedrine and Hydrocodone
  
• Pseudoephedrine Extended Release
  
• Pseudoephedrine Oral Solution or Syrup
  
• Pseudoephedrine, Guaifenesin and Dextromethorphan
  
• Pseudoephedrine, Guaifenesin, Dextromethhorphan Liquid
  
• Pseudomembranous colitis
  Pseudomembranous colitis is a infection of the colon caused by the bacterium Clostridium difficile. The illness is characterized by offensive-smelling diarrhea, fever, and abdominal pain. It can be severe, causing toxic megacolon, and even fatal.
• Pseudomonas Dermatitis
  
• pseudomyxoma peritonei - SOO-doe-mix-O-ma PAIR-ih-TOE-nee-I
  A build-up of mucus in the peritoneal cavity. The mucus may come from ruptured ovarian cysts, the appendix, or from other abdominal tissues, and mucus-secreting cells may attach to the peritoneal lining and continue to secrete mucus.
• Pseudotumor Cerebri
  Benign intracranial hypertension (BIH), more properly called idiopathic intracranial hypertension (IIH), and previously known as pseudotumor cerebri (PTC) is a neurologic disease that is caused by increased intracranial pressure of the cerebrospinal fluid (CSF) in the subarachnoid space surrounding the brain without radiological indication of intracranial pathology. ...
• Pseudovent
  
• Pseudoxanthoma elasticum
  Pseudoxanthoma elasticum is a progressive disorder that affects connective tissue, the material that supports and holds together different structures of the body. This condition is characterized by accumulated deposits of calcium (calcification) and other minerals in elastic fibers, a component of connective tissue. Calcification can affect elastic fibers in the skin, eyes, and blood vessels, and less frequently in other areas such as the digestive tract. As a result, people with pseudoxanthoma elasticum may have yellowish bumps (papules) on their necks, underarms, and elsewhere on the skin. They may also have changes in the eye called angioid streaks that can lead to vision loss if bleeding occurs. People with pseudoxanthoma elasticum are also at increased risk for problems involving blood vessels, such as decreased blood flow to the arms and legs, which may cause cramping or pain with exercise (claudication). Bleeding in the digestive tract is another risk. Most affected individuals live a normal lifespan.
• Psittacosis
  In medicine (pulmonology), psittacosis -- also known as parrot disease, parrot fever, and ornithosis -- is a zoonotic infectious disease caused by a bacterium called Chlamydia psittaci and contracted from parrots, macaws, cockatiels, and parakeets. The incidence of infection in canaries and finches is believed to be lower than in psittacine birds.
• psoralen -
  A substance that binds to the DNA in cells and stops them from multiplying. It is being studied in the treatment of graft-versus-host disease and is used in the treatment of psoriasis and vitiligo.
• psoriasis -
  A chronic disease of the skin marked by red patches covered with white scales.
• Psychic surgery
  Psychic surgery is allegedly a paranormal surgical procedure. It is associated with the Philippines and performed by self-styled psychic doctors or psychic surgeons. Its practitioners claim it involves the extraction of "tumors" or other presumed pathological objects (pus, bones, and so on) from the patient's body through a bloody but painless and invisible "incision", often made with bare hands and without the use of antiseptics or anesthetics. ...
• Psychological Interventions
  
• psychologist -
  A specialist who can talk with patients and their families about emotional and personal matters, and can help them make decisions.
• Psychopharmacology
  Psychopharmacology is the study of the effects of any psychoactive drug that acts upon the mind by affecting brain chemistry. Amanita muscaria (the common Fly Agaric) is often regarded as the first such drug, with modern theories positing the discovery of its psychoactive properties circa 10,000 BCE. Modern psychopharmacology studies a wide range of chemicals with many different types of effect.
• Psychosocial interventions
  
• Psychotherapy
  Psychotherapy is a set of techniques intended to cure or improve psychological and behavioral problems in humans. The commonest form of psychotherapy is direct personal contact between therapist and patient, mainly in the form of talking. Because sensitive topics are often discussed during psychotherapy, therapists are expected, and usually legally bound, to respect patient privacy and client confidentiality.
• Psychotherapy & Counseling
  
• Psychotic Disorder
  Psychosis is a psychiatric classification for a mental state in which the perception of reality is distorted. Persons experiencing a psychotic episode may experience hallucinations (often auditory or visual hallucinations), hold paranoid or delusional beliefs, experience personality changes and exhibit disorganized thinking (see thought disorder). ...
• Psyllium
  Plantago is a genus of small, inconspicuous plants commonly called plantains. They share this name with the very dissimilar plantain, a kind of banana. Leaves are sessile, but have a narrow part near the stem which is a pseudo-petiole. They have three or five parallel veins that diverge in the wider part of the leaf. Leaves are broad or narrow, depending on the species. Inflorescences are borne on stalks and can be a short cone or a long spike. The plants are typically 5-40 cm tall.
• Psyllium Seed
  
• PT
  .pt is the Internet country code top-level domain (ccTLD) for Portugal.
• PT 20210
  
• PTC -
  Percutaneous transhepatic cholangiography (per-kyoo-TAN-ee-us trans-heh-PAT-ik ko-LAN-jee-AH-gra-fee). A procedure to x-ray the hepatic and common bile ducts. A contrasting agent is injected into the liver or bile duct, and the ducts are then x-rayed to find the point of obstruction.
• PTCD -
  Percutaneous transhepatic cholangiodrainage. A procedure to drain bile to relieve pressure in the bile ducts caused by a blockage. An x-ray of the liver and bile ducts locates the blockage of bile flow. Images made by ultrasound guide placement of a stent (tube), which remains in the liver. Bile drains through the stent into the small intestine or into a collection bag outside the body. This procedure may relieve jaundice before surgery. Also called percutaneous transhepatic biliary drainage.
• PTH
  Parathyroid hormone (PTH) is secreted by the parathyroid glands as a polypeptide containing 84 amino acids.
• PTK787/ZK 222584 -
  An anticancer drug that belongs to the family of drugs called angiogenesis inhibitors.
• ptosis -
  Drooping of the upper eyelid.
• PTU
  PTU (ПТУ, пэ-тэ-у́) is acronym for Russian professional`no-tehnicheskoye uchilische (профессиона́льно-техни́ческое учи́лище) – a Soviet vocational education facility aimed to train qualified industrial workers and servicemen ...
• Puberty
  Puberty refers to the process of physical changes by which a child's body becomes an adult body capable of reproduction. Growth accelerates in the first half of puberty and reaches completion by the end. Body differences between boys and girls before puberty are almost entirely restricted to the genitalia. During puberty, major differences of size, shape, composition, and function develop in many body structures and systems. ...
• Pubic Lice
  Pubic lice (Phthirus pubis), also known as "crabs," are one of the many varieties of lice(singular "louse") specialized to live on different areas of different animals. As the name implies, pubic lice are specialized to live in the human pubic hair, but may also live in hair on other areas of the body such as hair on the legs, armpit, mustache, beard, eyebrows, and eyelashes. Infestations of young children are usually on the eyebrows or eyelashes. ...
• Public Health
  Public health is an aspect of health services concerned with threats to the overall health of a community based on population health analysis. It generally includes surveillance and control of infectious disease and promotion of healthy behaviors among members of the community. Prevention is another important principle: both vaccination programs and free distribution of condoms are public health measures. ...
• Public Health and the Environment Newsletter
  
• Public Health Information Network
  
• Public Health Law
  The branch of law that focuses on legal issues in public health practice and on the public health effects of legal practice. Public health law typically has three major areas of practice: police power, disease and injury prevention, and the law of populations.
• Publication Lists And Catalogs
  
• Publication Request
  
• Publications &
  
• Puerto Rico (U.S.)
  The Commonwealth of Puerto Rico (Spanish: Estado Libre Asociado de Puerto Rico) is a self-governing unincorporated organized territory of the United States located east of the Dominican Republic in the northeastern Caribbean. Puerto Rico, the smallest of the Greater Antilles, includes the main island of Puerto Rico and a number of smaller islands and keys, including Mona, Vieques, and Culebra. Of the latter three, only Culebra and Vieques are inhabited year-round. ...
• Pulmicort Respules
  
• Pulmonaria Officinalis
  La "Pulmonaria" ( Pulmonaria officinalis ) es una planta incluida en el género Pulmonaria. Es una hierba perenne con un rizoma que se desarrolla en zonas húmedas de barrancos, laderas y ribazos de bosques
• pulmonary -
  Relating to the lungs.
• Pulmonary Agents
  
• Pulmonary Artery
  The pulmonary arteries carry blood from the heart to the lungs. They are the only arteries (other than umbilical arteries in the fetus) that carry deoxygenated blood.
• Pulmonary edema
  Pulmonary edema is swelling and/or fluid accumulation in the lungs. It leads to impaired gas exchange and may cause respiratory failure.
• Pulmonary Embolism
  A pulmonary embolism (thromboembolism) occurs when a blood clot, generally a venous thrombus, becomes dislodged from its site of formation and embolizes to the arterial blood supply of one of the lungs. Symptoms may include difficulty breathing, pain during breathing, and more rarely circulatory instability and death. Treatment is with anticoagulant medication, such as warfarin.
• Pulmonary Fibrosis
  Diffuse parenchymal lung disease (DPLD), also known as interstitial lung disease, refers to a group of lung diseases, affecting the alveolar epithelium, pulmonary capillary endothelium, basement membrane, perivascular and perilymphatic tissues. The term DPLD is used to distinguish these diseases from obstructive airways diseases. Most types of DPLD involve fibrosis, but this is not essential; indeed fibrosis is often a later feature. Hence the term pulmonary fibrosis has fallen out of favor.
• Pulmonary Hypertension
  In medicine, pulmonary hypertension (PH) or pulmonary artery hypertension (PAH) is an increase in blood pressure in the pulmonary artery or lung vasculature. Depending on the cause, it can be a severe disease with a markedly decreased exercise tolerance and right-sided heart failure.
• pulmonary sulcus tumor -
  Non-small cell lung cancer that originates in the upper portion of the lung and extends to other nearby tissues such as the ribs and vertebrae. Also called a Pancoast tumor.
• Pulmozyme
  
• pump -
  A device that is used to deliver a precise amount of drug at a specific rate.
• Puralin
  
• Purging Buckthorn
  
• PV Tussin Tablets
  
• PV701 -
  A virus that is being studied as a treatment for cancer. PV701 belongs to a family of viruses that cause Newcastle disease in birds.
• Pyelography
  roentgenography of the kidney and ureters (usually after injection with a radiopaque dye)
• Pyelonephritis
  Pyelonephritis is an ascending urinary tract infection that has reached the pyelum (pelvis) of the kidney (nephros in Greek). If the infection is severe, the term "urosepsis" is used interchangeably. It requires antibiotics as therapy.
• Pyelonephritis (Kidney Infection) in Adults
  
• Pygeum Africanum
  
• Pyloric stenosis
  Pyloric stenosis is an uncommon pediatric condition where there is a congenital narrowing of the pylorus (the opening at the lower end of the stomach). Babies with this condition usually present within the first few weeks (usually between 2nd and 3rd) of life with poor feeding, weight loss and progressively worsening vomiting leading ultimately to projectile vomiting. Males are more commonly affected than females.
• Pyrantel
  
• Pyrazinamide
  Pyrazinamide is most active during the first 2(3) months of therapy. The daily dose for adults is 20-30 mg/kg and for children 30-40 mg/kg, to a maximum of 2500 mg. The intermittent dose is 50-70 mg/kg for both adults and children, with an upper limit of 3500 mg. Pyrazinamide may be used during pregnancy.
• pyrazine diazohydroxide -
  An anticancer drug.
• pyrazoloacridine -
  An anticancer drug that belongs to the family of drugs called acridines.
• Pyridostigmine
  Pyridostigmine is a parasympathomimetic and a reversible cholinesterase inhibitor. It is poorly absorbed in the gut and doesn't cross the blood-brain barrier.
• Pyridostigmine Injection
  
• Pyridostigmine Oral Syrup
  
• Pyridoxine
  The two major forms of vitamin B6 are pyridoxine and pyridoxamine. In the liver they are converted to pyridoxal 5'-phosphate (PLP) which is a cofactor in many reactions of amino acid metabolism. PLP also is necessary for the enzymatic reaction governing the release of glucose from glycogen.
• Pyridoxine Injection
  
• Pyrimethamine
  
• pyroxamide -
  A substance that is being studied as a treatment for cancer. It belongs to the family of drugs called histone deacetylase inhibitors.
• Pyruvate
  Pyruvate (CH3COCOO−) is the ionized form of pyruvic acid. It is an important chemical compound in biochemistry. It is the output of the breakdown of glucose known as glycolysis, and (in aerobic respiration) the main input for the citric acid cycle via acetyl CoA. It can be converted to oxaloacetate, an intermediate of the TCA cyle by an anaplerotic reaction. ...