rium
N5-1/N2 part of Prometrium is a natural progesterone drug used to help regulate the menstrual cycle and prevent overgrowth of the uterine lining. It is also used to treat menopausal symptoms such as irregular menstrual periods, hot flashes, and night sweats. It works by replacing the natural progesterone the body loses after menopause and can help reduce the risk of endometrial cancer. Common side effects include headache, nausea, breast tenderness, bloating, dizziness, and depression.