.beta.-Progesterone .delta.(sup4)-Pregnene-3,20-dione .delta.4-Pregnene-3,20-dione 17.alpha.-Hydroxy-6.alpha.-methylpregn-4-ene-3,20-dione 17.alpha.-Progesterone 3,20-Pregnene-4 4-Pregnene-3,20-dione 57-83-0 6.alpha.-Methylpregn-4-en-17.alpha.-ol-3,20-dione Agolutin Bio-luton Colprosterone Corlutin Corlutina Corluvite Corporin Corpus luteum hormone Cyclogest Flavolutan Fologenon Gesterol Gestone Gestormone Gestron Glanducorpin Gynlutin Gynolutone Hormoflaveine Hormoluton Lingusorbs Lipo-Lutin Lucorteum Lucorteum Sol Luteal hormone Luteine Luteinique Luteocrin normale Luteodyn Luteogan Luteohormone Luteol Luteopur Luteosan Luteostab Luteovis Lutex Lutidon Lutin Lutociclina Lutocyclin Lutocyclin M Lutocylin Lutocylol Lutoform Lutogyl Lutren Lutromone MPA Membrettes Methylpregnone NSC-9704 NSC64377 Nalutron Percutacrine Luteinique Piaponon Pranone Pregn-4-ene-3,20-dione Pregn-4-ene-3,20-dione, 17.alpha.-hydroxy-6.alpha.-methyl- Pregnene-3,20-dione Pregnenedione Primolut Progekan Progestasert Progesterol Progesterone Progesteronum Progestin Progestone Progestosol Progestron Progestronol Prolets Prolidon Prolutin Proluton Protormone Syngesterone Syngestrets Synovex S Syntolutan