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Information on Birth Control Pills »
Birth control pills are also known as oral contraceptives (OCs) or, simply, “the pill.” They offer protection against pregnancy by blocking the union of sperm and egg, thereby preventing conception.
Oral contraceptives or birth control pills contain synthetic female hormones. They work largely by preventing the release of an egg from an ovary, or ovulation. If no egg is released, there can be no pregnancy.
Stopping ovulation is not the only way birth control pills can work. The progestin or synthetic progesterone in birth control pills also changes the physical and chemical environment of the female reproductive tract, making it hostile for sperm.
The active ingredients in birth control pills are synthetic versions of the female hormones estrogen and progesterone. Combination oral contraceptives are birth control...
OVCON®50
(norethindrone and ethinyl estradiol) Tablets, USP
Patients should be counseled that this product does not protect against HIV-infection (AIDS) and other sexually transmitted diseases.
OVCON® 50, 28-Day (norethindrone and ethinyl estradiol tablets, USP) provides a continuous regimen for oral contraception derived from 21 tablets composed of norethindrone and ethinyl estradiol to be followed by 7 green tablets of inert ingredients. The chemical name for norethindrone is 17-hydroxy-19-nor-17αpregn-4-en-20-yn-3-one and for ethinyl estradiol the chemical name is 19-nor-17α-pregna-1,3,5(10)-trien20-yne-3,17-diol. The structural formulas are:
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The active OVCON (norethindrone and ethinyl estradiol tablets) 50 tablets contain 1 mg norethindrone and 0.05 mg ethinyl estradiol.
OVCON (norethindrone and ethinyl estradiol tablets) ® 50, 28-Day contains the following inactive ingredients: dibasic calcium phosphate, D&C Yellow No. 10 (aluminum lake), FD&C Blue No. 1 (aluminum lake), FD&C Yellow No. 6 (aluminum lake), lactose, magnesium stearate, povidone, sodium starch glycolate, starch (corn), and talc.
Last reviewed on RxList: 8/7/2008
This monograph has been modified to include the generic and brand name in many instances.
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