In general, the use of metoprolol succinate extended-release tablets need to follow the doctor’s instructions, according to the patient’s specific condition to determine whether the need for lifelong use. Usually, Metoprolol succinate extended-release tablets can effectively treat coronary heart disease, hypertension, angina pectoris and other diseases, if the condition is relatively mild, after taking Metoprolol succinate extended-release tablets and other drugs for treatment, the condition is gradually relieved, or even cured can be discontinued, then there is no need for lifelong use. You need to follow the doctor’s instructions to use metoprolol succinate extended-release tablets for treatment, avoiding the use of private medication. For more serious conditions, such as long-term chest pain, arrhythmia, increased blood pressure, dyspnea, patients need to be under the guidance of a doctor, lifelong use of metoprolol succinate extended-release tablets, to a certain extent to control the development of the disease, to avoid sudden deterioration of the condition of the discomfort caused by the symptoms, or the patient may decline in cardiac function, heart failure, resulting in malignant arrhythmia caused by sudden death. The drug should be used under the guidance of a doctor and avoid unauthorized application to avoid adverse reactions.