Betaxolol consists of metoprolol succinate, which is a beta-blocker and is used clinically to treat hypertension, prevent left ventricular remodeling, slow down heart rate, improve myocardial ischemia, and as a secondary prevention drug for patients with angina pectoris and heart failure. This drug can be taken on an empty stomach, or after a meal for patients with gastrointestinal discomfort, and is not strictly limited to an empty stomach or after a meal. It is recommended that patients take this drug in the morning because the sympathetic nerves are most excited in the morning and the heartbeat tends to be faster. However, if the patient has a fast metabolism, this drug can also be taken twice a day, so the final frequency of taking the drug should be decided according to the actual situation.