Betalucil, the drug name is metoprolol tartrate, the combination of drugs should be under the supervision of a doctor, the effect is better. Metoprolol tartrate is a β-blocker, which can inhibit sympathetic excitation, slow heart rate, inhibit cardiac contractility, reduce autoregulation and delay atrioventricular conduction time, diastolic blood vessels, and is commonly used in the treatment of high blood pressure, angina pectoris, myocardial infarction, hypertrophic cardiomyopathy, cardiac arrhythmia, heart failure and so on. Metoprolol tartrate is used in combination with different diseases for different therapeutic purposes and effects, the treatment of hypertension is generally used for patients with faster heart rate and higher sympathetic nervous tension; the treatment of angina pectoris and myocardial infarction is aimed at slowing down the heart rate, reducing the myocardial oxygen consumption, and contributing to the recovery of the myocardium; the treatment of hypertrophic cardiomyopathy helps to alleviate the obstruction of outflow tracts; the treatment of arrhythmias slows down the heart rate and reduces the cardiac autonomic rhythm; the treatment of heart failure helps to inhibit the autonomic rhythm of the heart. ; treatment of heart failure helps inhibit myocardial remodeling and prevents heart dilation. If you take metoprolol tartrate for a long period of time there may be a risk of slow heart rate, low blood pressure, induced chronic obstructive pulmonary disease and asthma attacks, it is recommended that the combination of drugs should be under the supervision of a doctor.