Duphaston (dydrogesterone) is a synthetic progestogen that mimics the action of natural progesterone. It is used to treat a variety of conditions related to hormonal imbalance in women, particularly those involving progesterone deficiency. Duphaston Tablet is used to treat menstrual irregularities, progesterone deficiency, infertility related to hormonal imbalance, and to support pregnancy. It helps maintain normal menstrual cycles and supports the uterine lining during early pregnancy. Duphaston Tablet works by imitating the activities of the natural hormone progesterone, which in turn helps to treat conditions caused due to hormonal imbalance in the body. Duphaston Tablet may cause side effects such as nausea, headache, abnormal vaginal discharge, breast pain and tenderness, etc. These side effects usually subside with time. Dydrogesterone was first introduced, by Duphar, as Duphaston in the United Kingdom in 1961. [15] Subsequently, it was introduced in the United States as Duphaston and Gynorest in 1962 and 1968, respectively. [15] Duphaston is a progestogen that works by regulating the healthy growth and normal shedding of the womb lining by acting on progesterone receptors in the uterus. Duphaston 10mg Tablet is prescribed to treat a wide range of menstrual disorders and to maintain a healthy womb lining for the ongoing pregnancy. It may also be used in women who have suffered repeated miscarriages. Duphaston 10mg is a synthetic hormone that belongs to the progestin class of medications. It is primarily prescribed to address progesterone deficiencies and is commonly used in gynaecological therapies. Duphaston contains milk sugar (lactose). If you have been told by your doctor that you cannot tolerate or digest some sugars (have an intolerance to some sugars), talk to your doctor before taking this medicine. Duphaston 10 mg provides hormonal support by mimicking your body's natural progesterone. This helps to prepare and maintain the uterine lining, creating a stable and nurturing environment for the baby to grow, which is crucial in early pregnancy. Duphaston® Brand names may vary by country. This information refers to the product as marketed in selected countries.