Vancomycin is trimetazidine hydrochloride, a drug that improves myocardial metabolism, which can significantly improve myocardial metabolism, provide more energy to the heart, increase cardiac output, and prevent the occurrence of angina pectoris. The commonly used dose is 1 tablet, taken orally 3 times a day. Patients with coronary artery disease and angina pectoris apply conventional secondary prevention drugs for coronary artery disease, such as aspirin, clopidogrel, simvastatin, metoprolol, isosorbide mononitrate, etc. Vanzantel can be added if symptoms are still present. Evaluate the efficacy of the drug after 3 months, and stop it if there is no effect. It is not recommended as an initial treatment for patients with unstable angina or myocardial infarction. In addition, Vaseline is prohibited for people who participate in athletic competitions.