Dienogest Applications: (1). Dienogest has moderate affinity for the progesterone receptor in human uterus tissue, in vitro, about 10% that of progesterone. (2). Inhibition of ovulation The minimum effective dose of oral dienogest required to inhibit ovulation is 1 mg/day. The inhibition of ovulation by dienogest occurs mainly via peripheral action as opposed to central action on gonadotrophin secretion. Oral treatment of dienogest 2 mg/day in cyclical women reduced serum progesterone levels to anovulatory levels, however serum levels of lutenising hormone and follicle-stimulating hormone are not significantly altered.