At present, there are three main categories of drugs that can relieve rapid heartbeat in actual clinical practice. The first group is beta-blockers, and the representative drugs include propranolol, bisoprolol, metoprolol, etc. The second group is non-dihydropyridine calcium channel blockers, and the representative drugs are verapamil, diltiazem, etc. The third category is If channel blockers, and the representative drug is ivabradine. Among these three categories of drugs, If channel blockers, relatively speaking, are not very widely used, and it also has certain restrictions, mainly for patients with sinus tachycardia, for example, if patients have atrial fibrillation, atrial flutter, it is not suitable to use this type of drugs to control the ventricular rate, relatively speaking, beta-blockers, it is the most widely used, it can not only relieve patients with rapid heartbeat, it also It helps to improve myocardial ischemia and prevent left ventricular remodeling, and is a secondary prevention drug for patients with heart failure and angina pectoris.