Dydrogesterone is a progestogen hormone. The brand name is Duphaston and manufactured by Abbott. Dydrogesterone was first introduced to the market in 1961, and is currently approved in over 100 countries worldwide. It has an estimated cumulative exposure of more than 28 million patients. Dydrogesterone is a potent, orally active progestogen indicated in a wide variety of gynaecological conditions. Although similar in molecular structure and pharmacological effects to endogenous progesterone. It is orally active at far lower doses. Its freedom from oestrogenic, androgenic, anabolic, corticoid and other undesirable hormonal effects gives it additional benefits over most other synthetic progestogens...