Coronary heart disease patients usually can not eat mononitrate, but the specific use of drugs need to be decided after the doctor comprehensive assessment of the condition. Coronary heart disease is mainly due to coronary artery atherosclerosis, resulting in myocardial ischemia, hypoxia symptoms, mononitrate is known as isosorbide mononitrate, belongs to the nitrate class of drugs, the use of which can effectively reduce the myocardial cell oxygen demand as well as to improve the rate of myocardial perfusion, is mainly used in the treatment of coronary heart disease. If due to other factors can not take isosorbide mononitrate for treatment, you can choose isosorbide dinitrate and other drugs after a comprehensive assessment of the condition of the doctor, also can achieve a better therapeutic effect; at the same time, you can follow the doctor’s instructions to choose metoprolol, nifedipine, amlodipine and other drugs treatment. Coronary heart disease patients are advised to go to the cardiovascular internal medicine department in a timely manner, after the doctor combined with the assessment of the condition, to decide the dose of medication and learn the precautions.