Synonyms: Synovex C;Duogynon forte;Synovex S;Estroprogyn;Tonevex S;Pregn-4-ene-3,20-dione,compounds,mixt. with (17a)-17-hydroxyestra-1,3,5(10)-trien-3-yl benzoate;Limovanil;ESTRADIOL BENZOATE mixed with PROGESTERONE (1:14 moles);PROGESTERONE mixed with ESTRADIOL BENZOATE (14:1 moles);ESTRA-1,3,5(10)-TRIETNE-3,17-β-DIOL-3-BENZOATE mixed with PROGESTERONE (1:14 moles);PROGESTERONE mixed with ESTRA-1,3,5(10)-TRIENE-3,17-β-DIOL-3-BENZOATE (14:1 moles);