Ethinyl Estradiol and Norethindrone (Oral Contraceptive) Effects, Dosage, and Side Effects Brevicon; Estrostep 21; Estrostep Fe; Gencept 0.5/35; Gencept 1/35; Gencept 10/11; Genora 0.5/35; Genora 1/35; Jenest-28; Loestrin 21 1.5/30; Loestrin 21 1/20; Loestrin Fe 1.5/30; Loestrin Fe 1/20; Microgestin Fe 1.5/30; Microgestin Fe 1/20; Modicon; N. E. E.; Necon 0.5/35; Necon 1/35; Necon 10/11; Necon 7/7/7; Nelova 0.5/35 E; Nelova 1/35 E; Nelova 10/11; Norcept-E 1/35; Norethin 1/35 E; Norinyl 1+35; Nortrel 0.5/35; Nortrel 1/35; Nortrel 7/7/7; Ortho-Novum 1/35; Ortho-Novum 10/11; Ortho-Novum 7/7/7; Ovcon-35; Ovcon-50; Tri-Norinyl

... ETHINYL ESTRADIOL/NORETHINDRONE products are effective as oral contraceptives (birth control pills or ''the pill''). These products combine natural or synthetic estrogens and progestins, similar to the natural sex hormones (estrogen and progesterone) produced in a woman''s body. Ethinyl estradiol is an estrogen and norethindrone is a progestin. These products can prevent ovulation and pregnancy. In general, a combination of estrogen and progestin works better than a single-ingredient product. Ethinyl estradiol/norethindrone tablets can also help regulate menstrual flow, treat acne, or may be used for other hormone related problems in females. On rare occasions, they may be prescribed for other purposes. The type and amount of estrogen and/or progestin may be different from one product to another. ...

Oral contraceptives come in a variety of formulations. The main division is ...