Generally speaking, female patients in menstruation period can follow the doctor’s instructions to take Xinkeshu Tablets, but if there is a significant increase in the amount of menstruation after taking the drug, it should be discontinued as soon as possible and consult a doctor, and it is usually not recommended to take the drug orally during menstruation period when patients usually have heavy menstrual flow. Xinkeshu Tablets is a kind of Chinese patent medicine, belonging to the blood regulator, its main ingredients are hawthorn, danshen, Pueraria lobata, panax ginseng, woodruff and so on. It has the efficacy of activating blood circulation and removing blood stasis, moving qi and relieving pain (relieving pain by regulating the body’s qi). It is clinically used to treat chest tightness, palpitation, dizziness, headache, neck pain caused by qi stagnation and blood stasis; angina pectoris of coronary heart disease, hypertension, hyperlipidemia, arrhythmia seen in the above symptoms. As the main ingredients of this drug are all effective in activating blood circulation, removing blood stasis and promoting the flow of Qi, female patients taking it during menstruation may experience a significant increase in menstrual flow; patients who normally have heavy menstrual flow may experience a further increase in menstrual flow, and it is usually not recommended to take it. The specific use of medication should be taken in accordance with medical advice, and should not be taken on one’s own initiative, so as to avoid adverse consequences.