People with low menstrual flow caused by deficiency of qi and blood can take Wu Ji Bai Feng Wan during menstruation, but the specific use of medication should be guided by a professional Chinese medicine practitioner, do not use your own medicine. Wu Ji Bai Feng Wan is a kind of proprietary Chinese medicine, which consists of Wu Ji and deer horn gelatin, etc. Its effects are to replenish qi, nourish blood, regulate menstruation and stop menstruation; it can treat menstrual irregularities caused by qi and blood deficiency, and also have an improved effect on menstrual leakage and leucorrhea, emaciation, and soreness of the waist and knees, etc. It can be used to treat menstrual irregularities caused by qi and blood deficiency. People with low menstrual flow due to deficiency of qi and blood can take Wu Ji Bai Feng Wan during menstruation. The adverse effects of Wu Ji Bai Feng Wan are not known for the time being, and its use is prohibited in patients with colds and fever. It is not advisable to take quinquefolium, wulingzhi, soap pods and their preparations at the same time when taking this medicine; it is not advisable to drink tea and eat radish, so as not to affect the efficacy of the medicine. Avoid spicy, cold and stimulating food when using the medicine. Pregnant women should not take it. If there is a need for medication, it should be used under the guidance of a doctor’s diagnosis, and should not be used blindly on its own to avoid adverse consequences. If you feel unwell, please seek medical advice.