Clopidogrel tablets generally refer to clopidogrel bisulfate tablets, whose efficacy is mainly antiplatelet aggregation, prevention and treatment of blood clots, and side effects commonly include bleeding. Clopidogrel bisulfate tablets belong to antiplatelet aggregation drugs, which can be used for the prevention and treatment of cardio-cerebral peripheral vascular diseases due to platelet aggregation, such as angina pectoris, myocardial infarction, cerebral infarction, peripheral vascular embolism, and occlusive vasculitis. For people with high risk of cardiovascular and cerebrovascular diseases, clopidogrel bisulfate tablets can also be applied to prevent cardiovascular and cerebral diseases and to reduce the episodes of acute events. Because of its anti-platelet aggregation effect, the common adverse reaction of clopidogrel bisulfate tablets is that bleeding is easy to occur, such as the occurrence of subcutaneous hemorrhage, mucous membrane hemorrhage, gastrointestinal hemorrhage, urinary bleeding and so on, and the more serious one is to cause cranial and cerebral hemorrhage. So the application of this drug need to pay attention to monitoring blood routine, for the platelet significantly lower or bleeding tendency of the crowd should be used with caution. Clopidogrel bisulfate tablets belong to the prescription drugs, need to be applied under the guidance of a specialist.