Chuanxiongzin is a prescription drug that is mainly used in clinical practice for the treatment of ischemic cerebrovascular diseases, such as cerebral embolism and cerebral thrombosis, as well as for coronary atherosclerotic heart disease and vasculitis. It has anti-platelet aggregation effect, so it is good for dilating small arteries, improving microcirculation and increasing cerebral blood volume, but it is prohibited for patients who are allergic to this drug, and it is not used for patients with coagulation disorders, bleeding tendency and cerebral hemorrhage. It is best to use with caution.