Clopidogrel usually refers to clopidogrel bisulfate tablets, and clopidogrel bisulfate tablets are associated with side effects such as bleeding, hematoma, and diarrhea. Clopidogrel bisulfate tablets are antiplatelet agents that can be used to prevent atherosclerotic thrombotic events in recent myocardial infarction, ischemic stroke, and acute coronary syndrome. Side effects include hematoma, nosebleeds, gastrointestinal bleeding, diarrhea, abdominal pain, dyspepsia, bruising of subcutaneous tissue, bleeding at the injection site, and hematuria. The use of this drug is contraindicated in people who are allergic to any of the components or active substances in clopidogrel bisulfate tablets, patients with severe hepatic impairment, and patients with active pathologic bleeding. If you need to use the above drugs, be sure to take them under the guidance of a doctor, do not use them on your own, so as not to use them improperly and cause serious consequences.