The  facilitatory' effect on ovulation of the retrosteroid 1,6-dehydro-6-chloro-retroprogesterone (Ro 4-8347).
D000818:Animals; D001835:Body Weight; D002713:Chlorine / Q000494:pharmacology; D002715:Chlormadinone Acetate / Q000494:pharmacology; D004357:Drug Synergism; D004394:Dydrogesterone / Q000494:pharmacology*; D005260:Female; D006064:Gonadotropins, Equine / Q000494:pharmacology; D009929:Organ Size; D010053:Ovary / Q000033:anatomy & histology; D010060:Ovulation / Q000187:drug effects*; D011374:Progesterone / Q000494:pharmacology; D051381:Rats
D006064:Gonadotropins, Equine; D002715:Chlormadinone Acetate; D011374:Progesterone; D002713:Chlorine; D004394:Dydrogesterone