Dydrogesterone, sold under the brand name Duphaston and others, is a progestin medication used for a wide range of indications. It is commonly prescribed to manage conditions such as threatened or recurrent miscarriage during pregnancy, dysfunctional uterine bleeding, infertility due to luteal insufficiency, dysmenorrhea (painful periods), endometriosis, and secondary amenorrhea (absence of menstruation). Dydrogesterone works by mimicking the effects of natural progesterone, helping to regulate the menstrual cycle, support pregnancy, and alleviate symptoms associated with progesterone deficiency.

Parent: Dydrogesterone
Parent: Dydrogesterone
Parent: Dydrogesterone
Parent: Dydrogesterone
Parent: Dydrogesterone
Parent: Dydrogesterone
Parent: Dydrogesterone
During the production and storage of dydrogesterone, impurities can develop that need to be closely monitored to ensure the medication’s safety and efficacy. Regulatory bodies such as the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA) provide guidelines for acceptable impurity levels in pharmaceutical products to ensure patient safety.
Dydrogesterone tablets are prescribed to treat several conditions related to progesterone deficiency. These include threatened or recurrent miscarriage, dysfunctional uterine bleeding, infertility due to luteal phase insufficiency, painful periods (dysmenorrhea), endometriosis, and secondary amenorrhea. It is also used in hormone replacement therapy (HRT) in combination with estrogen to manage menopausal symptoms and prevent endometrial hyperplasia.
Dydrogesterone is a synthetic form of progesterone, but it is not identical to natural progesterone. It is more targeted, particularly for uterine conditions, and has fewer side effects. While both have similar functions, dydrogesterone is preferred for certain treatments due to its better oral bioavailability and its selective action on the uterus.
In hormone replacement therapy (HRT), dydrogesterone is used in combination with estrogen to alleviate menopausal symptoms, such as hot flashes and night sweats. It helps to balance estrogen’s effects on the uterus, reducing the risk of endometrial hyperplasia, a condition where the uterine lining thickens, which can be a side effect of estrogen therapy alone.
Dydrogesterone is highly effective in treating conditions caused by progesterone deficiency. It helps regulate the menstrual cycle, supports pregnancy in women with recurrent miscarriages, and reduces pain and symptoms associated with conditions like endometriosis and dysmenorrhea. It has also been shown to be effective in combination with estrogen for hormone replacement therapy, reducing the risk of uterine complications.