Cyproterone:3'H-Cyclopropa(1,2)pregna-1,4,6-triene 3,20-dione,6-chloro-1-beta,2-beta-dihydro-17-hydroxy-
Ethinylestradiol:17-ethynyl-13-methyl-7,8,9,11,12,13,14,15,16,17- decahydro-6H-cyclopenta[a] phenanthrene-3,17-diol