Hello, Gestofit 200 MG Capsule is obtained from plant sources and has a similar action to the female hormone, progesterone. It is used to correct menstrual disorders caused due to a deficiency of this hormone in the body. It is also used as a component in hormone replacement therapy and for maintenance of early pregnancy under specific circumstances. Some side effects are: •     chest pain and discomfort •     Fever and chills •     Difficulty in passing urine •     Breast pain and tenderness •     Muscle or joint pain •     White or brownish discharge from the vagina •     Headache •     Dizziness •     Depression •     Viral infections •     Breast lumps •     Loss of vision or blurred vision •     Unexpected vaginal bleeding •     Convulsions (seizures) •     Swelling of face, lips, eyelids, tongue, hands and feet •     Constipation or diarrhea •     Nausea or Vomiting •     Hot flashes •     Hair loss or thinning of the hair If you have any of these please contact your doctor. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Enton Dore, General & Family Physician