1. To correct failure in foetal nidation (implantation) by administration after ovulation. 2. In habitual & threatened abortions. 3. In treatment of nymphomania (an excessive sexual desire in a female) associated with ovarian cysts. 4. For the development of udder 5. Synchronization of estrous cycles and to organize and regulate oestrus cycle. (on progesterone administeration and its withdrawal, it mimics the natural decline in progesterone and thus helps to induce the normal increase in LH and FSH required for ovulation and results in a competent corpus luteum CL. 6. Disfunctional uterine bleeding. 7. Uterine fibroma, (A benign tumor derived from smooth muscle tissue, also known as a fibroid tumor.) & neoplasms (Cancer) of udder & endometrium 8. (inner lining of uterus). 9. To delay estrus & Ovulation in Cattle, Swine & Dogs