The causes of insufficient blood supply to the myocardium include coronary atherosclerosis, hypertrophic cardiomyopathy, arrhythmia and other diseases, and you can take drugs such as nitroglycerin, metoprolol and amiodarone to improve the symptoms. 1. Myocardial ischemia caused by coronary artery atherosclerosis can take vasodilating drugs such as nitroglycerin, reduce myocardial contractility of the drug metoprolol to improve the symptoms of myocardial ischemia. 2. Hypertrophic cardiomyopathy myocardial ischemia can take diltiazem, verapamil, bisoprolol and other drugs to reduce myocardial oxygen consumption, improve myocardial ischemia symptoms. 3. Arrhythmia can be treated with drugs such as amiodarone, phenytoin sodium, propafenone, etc. to restore normal ventricular rate and control myocardial ischemia symptoms. Due to the individual differences and the complexity of the etiology, the drugs need to be used in strict compliance with the doctor’s instructions, the emergence of adverse reactions to consult a doctor in a timely manner, drug allergy is prohibited.