The time of taking progesterone is closely related to the disease, it is recommended to follow the doctor’s instructions to regulate the use. At the same time, due to the adverse reaction of dizziness and fatigue, it is recommended to take it after meals and before bedtime. Progesterone is clinically applicable to menstrual disorders, preeclampsia and habitual abortion. For patients with menstrual disorders, the drug can be taken on the 14th day of menstruation, and discontinued after one week, and menstruation can occur one week after discontinuing the drug. For patients with preeclampsia, stop taking it after the bleeding and pain stop; patients with habitual abortion can take it twice a day at the beginning of pregnancy for birth control treatment. As progesterone has adverse reactions such as dizziness, headache, fatigue and nausea, it is recommended to take the drug after meals or before bedtime to minimize the occurrence of adverse reactions. The occurrence of adverse reactions promptly seek medical attention, drug allergy is prohibited.