Junel™ 21 and Junel™ Fe28 are progestogen-estrogen combinations.

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-17??­pregn-4-en-20-yn-3-one and for ethinyl estradiol the chemical name is 19-nor-17?-pregna-1,3,5(10)-trien?­20-yne-3,17-diol. The structural formulas are:

Aygestin (norethindrone acetate tablets, USP) - 5 mg oral tablets. Aygestin (norethindrone) , (17-hydroxy-19-nor-17?-pregn-4-en-20-yn-3-one acetate), a synthetic, orally active progestin, is the acetic acid ester of norethindrone. It is a white, or creamy white, crystalline powder.

GENERESS Fe provides an oral contraceptive regimen consisting of 24 tablets that contain the active ingredients specified below, followed by four non-hormonal placebo tablets:

Brevicon® (norethindrone and ethinyl estradiol) Tablets provide a continuous oral contraceptive regimen consisting of 21 blue tablets containing norethindrone 0.5 mg and ethinyl estradiol 0.035 mg and 7 orange tablets containing inert ingredients.

Loestrin® 24 Fe (norethindrone acetate and ethinyl estradiol) provides a dosage regimen consisting of 24 white progestogen-estrogen contraceptive tablets and 4 brown ferrous fumarate (placebo) tablets.

Each yellow Nor-QD (norethindrone) ® tablet provides a continuous oral contraceptive regimen of 0.35 mg norethindrone daily, and the inactive ingredients include D&C Yellow No. 10, FD&C Yellow No. 6, lactose, magnesium stearate, povidone, and starch.

FEMCON® Fe (norethindrone and ethinyl estradiol tablets) provides a regimen for oral contraception derived from 21 white tablets composed of norethindrone and ethinyl estradiol followed by 7 brown ferrous fumarate (placebo) tablets. The chemical name for norethindrone is 17-hydroxy-19-nor-17a-pregn-4-en-20-yn-3-one and for ethinyl estradiol the chemical name is 19-nor-17a-pregna-1,3,5(10)-trien-20-yne-3,17-diol. The structural formulas are:

femhrt® (norethindrone acetate/ethinyl estradiol tablets) is a continuous dosage regimen of a progestin-estrogen combination for oral administration.

ORTHO MICRONOR® (norethindrone) Tablets