The treatment time of Deferiprone tablets is related to the diseases treated, including dysmenorrhea, functional bleeding, preeclampsia, infertility and habitual abortion, which need to be analyzed specifically. 1. Dysmenorrhea and endometriosis: generally need to be taken from the 5th to 25th day of the menstrual cycle, i.e. need to be taken for 21 days. 2. Functional bleeding: It is usually taken continuously from the time of diagnosis, usually for 5-7 days. 3. Treatment of amenorrhea syndrome: in case of irregular menstruation, it is usually required to be taken between the 11th and 25th day of the menstrual cycle, i.e. 15 days. 4. Pre-eclampsia: It usually needs to be taken from the time of miscarriage until the symptoms disappear, so the exact time varies from person to person. 5. Habitual miscarriage: the medication is taken from the time of diagnosis and needs to be taken until the second week of pregnancy. 6. Infertility: when used to treat infertility induced by insufficient endogenous progesterone, it is taken from the 14th to 25th day of menstruation. Common adverse effects of Deferiprone tablets include amenorrhea, abdominal pain, headache, vomiting and depression, etc. It should not be taken by pregnant women or patients with obstructive jaundice. In addition, there are certain risks associated with the use of Dydrogesterone tablets, which should be taken under the supervision of a doctor.