Description_x000D_ Packaging_x000D_ 10, 50 mg in glass bottle_x000D_ Biochem/physiol Actions_x000D_ Dienogest is a fourth-generation progestin, an orally active synthetic progestogen with approximately 10% of the relative affinity of progesterone, but has a very potent progestagenic effect in the endometrium with some antiandrogenic activity and without any androgenic, glucocorticoid or mineralocorticoid effects. It has been used alone or in combination as a contraceptive and to treat uterine fibroids. Dienogest inhibits ovulation primarily through peripheral action rather than by central action on gonadotrophin secretion.