Leuprorelin, also known as leuprolide, is a synthetic medication that belongs to a class of drugs called gonadotropin-releasing hormone (GnRH) agonists. It works by initially stimulating the production of sex hormones like testosterone and estrogen but, with continuous use, it suppresses their release to treat hormone-sensitive conditions such as prostate cancer, breast cancer, endometriosis, and uterine fibroids. Given as a long-acting injection into a muscle or under the skin, its dosage schedule can range from once a month to twice a year depending on the specific formulation. Common side effects include symptoms related to reduced hormone levels, such as hot flashes, sweating, and changes in menstrual periods