Pimtrea™ (Desogestrel and Ethinyl Estradiol Tablets, USP and Ethinyl Estradiol tablets, USP) provide an oral contraceptive regimen of 21 dark blue tablets each containing 0.15 mg desogestrel (13-ethyl-11-methylene-18,19-dinor-17 alpha-pregn-4-en-20-yn-17-ol), 0.02 mg ethinyl estradiol (19-nor-17 alpha-pregna-1,3,5 (10)-trien-20-yne-3,17-diol), and inactive ingredients which include: titanium dioxide, macrogol/PEG 400 NF, hydroxypropylmethylcellulose/hypromellose, Vitamin E, FD&C Red No.40, FD&C Yellow No.6, FD&C Blue No.1, lactose monohydrate, povidone, stearic acid and pregelatinized starch, followed by 2 inactive white tablets with the following inactive ingredients: titanium dioxide, polydextrose, hypromellose, triacetin, macrogol/polyethylene glycol 8000, lactose, magnesium stearate and pregelatinized corn starch. Pimtrea™ also contains 5 green tablets containing 0.01 mg ethinyl estradiol (19-nor-17 alpha-pregna-1,3,5 (10)-trien-20-yne-3,17-diol) and inactive ingredients which include: polyvinyl alcohol, titanium dioxide, talc, macrogol/PEG, lecithin (soya), D&C Yellow No. 10, FD&C Blue No. 1, iron oxide yellow, FD&C Red No. 40, lactose monohydrate, magnesium stearate and pregelatinized starch.