There is no specific time for regulating menstruation on the instructions of Wu Ji Bai Feng Wan. How long it takes to regulate menstruation is usually related to the severity of symptoms, disease regression and individual constitution. Clinically, 2-4 weeks is usually a treatment cycle. It is recommended to follow the doctor’s prescription for medication. Wu Ji Bai Feng Wan is composed of Wu Ji, deer antler gelatin, turtle shell and other drugs. It can be used to treat irregular menstruation caused by deficiency of qi and blood (weakness of qi and blood), metrorrhagia (excessive or spotting menstruation), profuse menstrual discharge, thinness and weakness, panic, pallor, lumbar and knee soreness (the feeling of lumbar and knee soreness and weakness), and fatigue and weakness. It should not be taken by patients with cold and fever, and those with serious chronic diseases such as hypertension, heart disease, liver disease, diabetes, kidney disease, etc. should take it under the guidance of a physician. Allergic to this product is prohibited. Patients who need to use this product, need to take under the guidance of a doctor, do not take on their own, so as not to cause related adverse reactions.