Betaxolol is the trade name and generic name of metoprolol, a type of antihypertensive drug, which belongs to one of the beta-blockers and achieves antihypertensive effect by weakening myocardial contraction and slowing down heart rate. Metoprolol is mainly used in the clinical treatment of hypertension, angina pectoris, myocardial infarction, in addition to the above diseases have a certain preventive effect, through the dilation of blood vessels can prevent the occurrence of myocardial ischemia, to prevent cardiac hypertrophy, can be long-term use. It can be taken after meals to reduce nausea, diarrhea and other uncomfortable symptoms. Because it can reduce the contraction force of the heart muscle, some people will experience lukewarm hands and feet and slowed heart rate. The dose can be adjusted without stopping the medication if you want to stop taking the medication in the process, you can gradually reduce the dose until you stop it completely, and it is forbidden to stop the medication suddenly to avoid a reflex increase in blood pressure.