The usual name of Betaloc is Metoprolol Tartrate or Metoprolol Succinate. Metoprolol Tartrate or Metoprolol Succinate and Isosorbide Nitrate Tablets are two different medicines, and it is not possible to compare which one is better, and the medicine should be used according to the condition. The specific use of medication should follow the doctor’s instructions. 1. Metoprolol tartrate or metoprolol succinate is a beta-blocker, indicated for supraventricular tachyarrhythmia. Prevention and treatment of myocardial ischemia, tachyarrhythmias, and chest pain in patients with confirmed or suspected acute myocardial infarction. Adverse reactions to this product include fatigue, dizziness, headache, bradycardia, fingertip chills, abdominal pain, nausea and vomiting. Contraindications include cardiogenic shock, sick sinus node syndrome, and high degree of atrioventricular block. 2. Isosorbide nitrate tablets are nitrate drugs with indications for long-term treatment of coronary heart disease; prevention of angina pectoris; treatment of persistent angina pectoris after myocardial infarction; treatment of chronic congestive heart failure in combination with digitalis and/or diuretics; and treatment of pulmonary hypertension. Adverse reactions to this product headache, dizziness, hypotension, tachycardia, restlessness. Contraindications include cardiogenic shock, hypertrophic obstructive cardiomyopathy, constrictive pericarditis, severe hypotension, increased intracranial pressure, severe anemia, glaucoma. The choice of drugs should be individualized according to the type of disease, not generalized, if you need to take the above drugs, please use under the guidance of a doctor.