Synonyms: Duogynon;Limovanil;Duogynon forte;Duogynon simplex;Estradiol benzoate mixture with progesterone;Estradiol benzoate mixed with progesterone (1:14 moles);Progesterone mixed with estradiol benzoate (14:1 moles);AC1L25DO;Estradiol, 3-benzoate mixed with progesterone (1:14 moles);Progesterone mixed with estradiol, 3-benzoate (14:1 moles);Estra-1,3,5(10)-triene-3,17-beta-diol 3-benzoate mixed with progesterone (1:14 moles);Progesterone mixed with estra-1,3,5(10)-triene-3,17-beta-diol 3-benzoate (14:1 moles);LS-64728;(8S,9S,10R,13S,14S,17S)-17-acetyl-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one; [(13S,17S)-17-hydroxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-3-yl] benzoate