Betaxolol is also called metoprolol succinate extended-release tablets. It is a long-acting beta-blocker and is used in clinical practice to treat hypertension and improve the uncomfortable symptoms of angina pectoris. In addition, it is also used as a secondary prevention drug to prevent the progression of heart failure and to prevent left ventricular remodeling. Currently, it is one of the drugs in the Golden Triangle for heart failure patients. In addition, for patients with tachycardia, this drug can be combined with the option to slow down the ventricular rate. In general, if the patient has heart failure, it is recommended to start treatment with a small dose, for example, 23.75 mg orally each time, and gradually increase the dose. It is important to monitor heart rate and blood pressure during drug application.