Common drugs to relieve rapid heart rate include beta-blockers, non-dihydropyridine calcium channel blockers, IF channel blockers, etc. Beta-blockers are the most widely used drugs to slow down the heart rate. Beta-blockers are the most widely used drugs to slow down the heart rate, representing drugs such as bisoprolol, metoprolol, etc. They are especially suitable for people with fast heart rate and mildly elevated blood pressure; in addition, these drugs also help myocardial reconstruction, and are advocated to be used in early stage for patients with heart failure. Non-dihydropyridine calcium channel blockers, representative drugs include verapamil, diltiazem, etc., which act on the calcium channels in the myocardium, atrioventricular node, coronary arteries, and smooth muscles of peripheral blood vessels, etc., and dilate blood vessels by reducing intracellular calcium ion concentration, thus alleviating the rapid heartbeat. IF channel blockers, representative drug ivabradine, is a new type of drug to reduce heart rate, mainly used for heart failure patients’ heart rate control. There are many other drugs to relieve tachycardia. If tachycardia occurs, it is recommended to consult a doctor in time for diagnosis and treatment by a professional doctor, and not to take medication without authorization, so as to avoid the occurrence of adverse drug reactions.