title: Use of megestrol acetate in African lions (Panthera leo).
mesh_terms: D000374:Aggression / Q000187:drug effects; D000818:Animals; D002335:Carnivora; D003267:Contraception; D005260:Female; D006801:Humans; D008045:Lions; D008535:Megestrol / Q000494:pharmacology; D011247:Pregnancy
chemical_list: D008535:Megestrol