Fast heart rate can take heart rate lowering drugs such as metoprolol tablets, bisoprolol tablets and other heart rate lowering treatment. When the heart rate is greater than 100 beats/minute is called tachycardia, heart rate increase is divided into physiological and pathological, such as staying up all night, exercise, emotional excitement, taking coffee, strong tea, etc. when the sympathetic nerve excitation heart rate increase, this is the physiological heart rate increase; and the heart sinus node autoregulation increase or the existence of ectopic rhythm when the heart rate increase is pathologic. Physiological tachycardia generally does not require special treatment, while pathological tachycardia can be treated with rate-lowering drugs such as metoprolol tablets according to the clinician’s recommendation. For prolonged tachycardia, it is recommended to go to the hospital for further examination to find out the cause, and use heart rate lowering drugs reasonably under the guidance of clinicians.