8003-08-5 Ethinylestradiol and medroxyprogesterone acetate Medroxyprogesterone acetate and ethinylestradiol Nogest Pregn-4-ene-3,20-dione, 17-(acetyloxy)-6-methyl-, (6-alpha)-, mixt. with (17-alpha)-19-norpregna-1,3,5(10)-trien-20-yne-3,17-diol Provest Provestal