The generic name of Polivivir is clopidogrel, which is an antiplatelet aggregation drug. During the use of the drug, it is important to be alert to its side effects, the most important side effect of Polivir is bleeding. Polivivir irreversibly inhibits platelet aggregation and adhesion and is used to prevent stroke, myocardial infarction, and peripheral arterial thrombotic disease. The main effect of Bolivir is to combat blood clots, that is, to make the blood less likely to clot, and accordingly, bleeding is the most common side effect of Bolivir. Bleeding caused by Polivivir includes life-threatening hemorrhage, including gastrointestinal hemorrhage and cerebral hemorrhage; it also includes some non-life-threatening bleeding, including skin purpura, hematoma, nasal bleeding, hematuria and eye bleeding (mainly conjunctival bleeding). Note if the patient has bleeding disorders, especially stomach bleeding, ulcers, intracranial bleeding, etc. For patients taking Polivic, they should review their coagulation function regularly, and also they should pay attention to whether there are bleeding spots on their skin, whether their gums bleed easily, whether their stools turn black, etc. In addition, the side effects of Polivic include: gastrointestinal discomfort, such as abdominal pain, indigestion, constipation or diarrhea; skin discomfort, such as rash, maculopapular rash, erythematous rash, urticaria and pruritus; central and peripheral nervous system symptoms, such as headache, dizziness and abnormal sensation; hematologic damage, such as leukopenia and granulocyte deficiency. Bolivar should be taken regularly under the supervision of a specialist. If any of the above conditions occur while taking Polivic, especially in case of life-threatening hemorrhage, you should consult a doctor promptly and be evaluated by a specialist for appropriate management measures.