Allergies; Allergy/Allergies; Anaphylaxis 

Clarinex is used in patients 12 years of age and older to:

§ treat symptoms of seasonal allergic rhinitis (“hay fever”)

§ relieve itching due to hives in patients with recurrent hives

An allergy is a immune malfunction whereby a person's body is hypersensitised to react immunologically to typically nonimmunogenic substances. When a person is hypersensitised these substances are known as allergens. The word allergy derives from the Greek words allos meaning "other" and ergon meaning "reaction" or "reactivity". Reactions can vary from the benign runny nose, to life-threatening anaphylactic shock and death.

Desloratadine as related to Allergy