Deferiprone is a progestin drug that can be used to treat a variety of conditions, such as dysfunctional uterine bleeding, endometriosis, and preeclampsia, and is used differently for different conditions. 1. Endometriosis. If you are treating endometriosis, usually from the 5th to 25th day of the menstrual cycle, you should take oral dextroprogesterone 2-3 times a day, 1 tablet each time. 2. Dysfunctional uterine bleeding. When there is bleeding, you can take 1 tablet of oral dextroprogesterone twice a day for 5-7 days. To prevent bleeding, take 1 tablet twice daily from the 11th to 25th day of menstruation. 3. Pre-eclampsia. If luteal insufficiency is determined to be the cause of preeclampsia, the starting dose is 4 tablets of oral dydrogesterone at one time, and the last dose is taken every 8 hours until the symptoms disappear. There will be some differences in the way the medication is administered depending on the purpose of the medication. And the medication may cause adverse reactions such as abdominal pain, vomiting, breakthrough bleeding, amenorrhea, etc., so it is important to use the medication under the supervision of a doctor.