There is no need for patients with coronary heart disease to take coenzyme Q10, which has no therapeutic effect on coronary heart disease and will not improve myocardial ischemia or improve the prognosis of patients with coronary heart disease. Patients with coronary heart disease need to take standardized treatment methods, actively make lifestyle adjustments, avoid various factors that trigger myocardial ischemia, eat a light diet, do not eat too much, quit smoking and limit alcohol, maintain a good state of mind, exercise reasonably, and control body weight. Medication should be given to improve myocardial ischemia and reduce the symptoms, you can choose beta-blockers, nitrates, and calcium channel blockers or other drugs to improve myocardial ischemia, such as trimetazidine, nicorandil, etc. Drugs to prevent myocardial infarction and improve prognosis, such as statin lipid-regulating drugs, antiplatelet drugs, ACEI or ARB drugs, beta-blockers, etc., are also given, and revascularization therapy can be given to suitable patients.