LOESTRIN 24 Fe is a combination oral contraceptive for oral administration consisting of active tablets containing norethindrone acetate, a progestin, and Ethinyl estradiol, an estrogen, and placebo tablets containing ferrous fumarate, which serve no therapeutic purpose.

  • Each active white tablet contains 1 mg norethindrone acetate and 20 mcg Ethinylestradiol. Inactive ingredients include acacia, lactose, magnesium stearate, starch, confectioner’s sugar, and talc.
  • Each placebo brown tablet contains 75 mg ferrous fumarate, microcrystalline cellulose, magnesium stearate, povidone, sodium starch glycolate, and compressible sugar. The ferrous fumarate tablets do not serve any therapeutic purpose. Ferrous fumarate tablets are not USP for dissolution and assay.

The chemical name of ethinyl estradiol is 19-nor-17α-pregna-1,3,5(10)-trien-20-yne-3,17diol.

The chemical name of norethindrone acetate is 17-hydroxy-19-nor-17α-pregn-4-en-20-yn-3one acetate.