Coenzyme q10 does not treat angina pectoris and cannot relieve angina pectoris-induced myocardial ischemia and hypoxia, such as chest pain and other symptoms of ischemia and hypoxia, while coenzyme q10 is a drug that improves the metabolism of myocardial cells, not a drug that improves the myocardial blood supply and oxygenation. 1. Although coenzyme q10 cannot relieve the symptoms of myocardial ischemia and hypoxia such as chest pain caused by angina pectoris. But it can improve myocardial cell metabolism and nutrition of cardiomyocytes, hepatocytes, etc. It can be used in adjuvant treatment of viral myocarditis, viral hepatitis and other diseases. At the same time coenzyme Q10 also has nausea, vomiting, skin rash and other adverse reactions, need to be used under the guidance of a professional doctor. 2. angina pectoris is due to coronary atherosclerosis, coronary artery stenosis, spasm caused by transient myocardial ischemia and ischemia manifestations, the treatment should be under the guidance of a doctor to use aspirin and other antiplatelet aggregation, simvastatin and other lipid stabilizing plaque medication, metoprolol and other β-blockers less myocardial oxygen consumption, nitroglycerin and other expansion of coronary artery treatment, vascular intervention therapy if necessary, and so on. In short, both the use of coenzyme q10 and the treatment of angina pectoris should be carried out under the guidance of a professional doctor.