19-Norpregn-4-en-20-yn-3-one, 17-(acetyloxy)-, (17alpha)-, mixt. with (17beta)-estra-1,3,5(10)-triene-3,17-diol 77728-33-7 Activelle Combipatch Estra-1,3,5(10)-triene-3,17-diol (17beta)-, mixt. with 17alpha-(acetyloxy)-19-norpregn-4-en-20-yn-3-one Estracomb Estracomb TTS Estradiol-Norethisterone acetate mixt Estradiol-norethindrone acetate Estradiol-norethindrone acetate mixt Estragest TTS Kliofem Kliogest Novofem