The first contraceptive pill available for human use in 1960 contained the estrogen mestranol, an ethinyl-estradiol precursor, in a very high concentration (150 mg), and norethynodrel, a 19 ...

Third-generation oral contraceptives are an association of low-dose ethinyl estradiol and potent testosterone-derived progestins, developed in order to improve general and vascular tolerance.

Norethindrone acetate, ethinyl estradiol; 0.5mg/2.5mcg, 1mg/5mcg; tabs. Undiagnosed abnormal genital bleeding. Breast or other estrogen-dependent neoplasms. Thromboembolic disorders (eg ...

Norethindrone 0.5mg, ethinyl estradiol 35micrograms (7 tabs); norethindrone 1mg, ethinyl estradiol 35micrograms (9 tabs); norethindrone 0.5mg, ethinyl estradiol 35micrograms (5 tabs); inert (7 tabs).