Metoprolol tartrate tablets, which is often referred to as betalactam, has the following main effects: lowering blood pressure, slowing down the heart rate, dilating coronary arteries and other effects. 1. Reduce blood pressure: Metoprolol tartrate tablets have a good effect on lowering blood pressure and are commonly used in the treatment of hypertension. 2. Slow down the heart rate: Metoprolol tartrate tablets belong to beta-blockers, can slow down the heart rate, commonly used in the treatment of arrhythmia. 3. Dilating coronary arteries: Metoprolol tartrate tablets can dilate coronary arteries, effectively improve the blood perfusion of the heart and relieve chest pain and chest tightness caused by myocardial ischemia and infarction. In conclusion, Metoprolol Tartrate Tablets are commonly used clinically for the treatment of hypertension, coronary heart disease, chronic heart failure and other diseases. Adverse reactions such as headache, dizziness, and slow heart rate may occur, and it is contraindicated for patients suffering from cardiogenic shock, symptomatic bradycardia or hypotension, heart failure, and II or III degree atrioventricular block. If you want to take the drug, be sure to go to the hospital and ask a medical professional to assess whether you have the indications for taking the drug.