Polivir and warfarin are two different drugs, the mechanism of action is different, the disease treated is also different, so there is no which one is better. Polivir, commonly known as clopidogrel bisulfate tablets, is a platelet inhibitor, the main role of anti-platelet aggregation, generally used to prevent atherosclerosis thrombosis, thereby reducing the incidence of cardiovascular and cerebrovascular malignant events, and has a very good therapeutic effect on recent myocardial infarction. Warfarin is an oral anticoagulant, this drug is mainly suitable for some patients who need long-term anticoagulant therapy, mainly used for thromboembolic disease. Both drugs in the use of the process, may cause bleeding and other adverse reactions, so in the process of taking the drug, to observe the oral cavity, nasal cavity and other bleeding, every once in a while in the hospital for coagulation and other related checks, under the guidance of the doctor reasonable use of drugs.