Premenstrual syndrome, maintenance of pregnancy in case of threatened or habitual abortion, sterlity due to luteal deficiency. In menopause to reduce the risk of endometrial hyperplasia and carcinoma in post menopausal woman receiving conjugated oestrogens. Puerperal depression. Hypersensitivity, undiagnosed veginal bleeding, liver dysfunction , cerebral apoplexy, thrombophlebitis, thromboembolic disorders.