Progesterone capsules induce menstruation to normalize menstruation, and generally its usage is 200mg orally once, twice daily for 10 days. Progesterone capsules are indicated for the treatment of premenstrual abortion and habitual abortion, premenstrual tension syndrome, anovulatory dysmenorrhea and anovulatory amenorrhea, and for the treatment of menopausal syndrome in combination with estrogen. Dosage is usually 200mg once, twice daily, orally for 10 days. Adverse reactions such as breakthrough bleeding, change in the nature of cervical discharge, breast swelling, headache, fever, nausea, melasma, chloasma, and frequent abnormalities of liver function may occur after taking the drug. It is contraindicated for those who are allergic to the product, unexplained vaginal bleeding, breast or genital tumors, thrombophlebitis, vascular embolism, cerebral stroke; and used with caution in patients with nephropathy, cardiogenic edema, hypertension. Once the clinical manifestations of thrombophlebitis, pulmonary embolism, sudden partial loss of vision or sudden blindness, diplopia, migraine, the drug should be stopped immediately; note that after stopping progesterone, if menstruation still does not occur on the ninth day, it is recommended to go to the hospital for further examination to rule out the possibility of pregnancy and premature ovarian failure. There are many reasons for women to delay or stop menstruation, such as endocrine disorders, pregnancy, uterine surgery, mental factors, etc. Therefore, you should consult your doctor first to find out the cause of the disease, and take the medication in strict compliance with the doctor’s instructions instead of blindly using the medication.