Indications : Ovulation Irregularities. Abnormal Uterine Bleeding. Hormone Replacement Therapy. Premenstrual Syndrome. Inadequate Luteal Functions. Habitual And Threatened Abortions. In Vitro Fertilization. Dosage: 25 to 100 mg of progesterone from approximately day 15 of the pregnancy until 8 to 16 weeks has been used may be increased to 200 mg..