The generic name of Betaloc is Metoprolol Succinate Extended-Release Tablets and Metoprolol Tartrate Tablets.The side effects of taking Metoprolol Succinate Extended-Release Tablets for long periods of time in elderly people are fatigue, dizziness, headache, coldness of the extremities, abdominal pain, nausea, and so on. Side effects of taking metoprolol tartrate tablets include fatigue, headache and dizziness. Metoprolol succinate extended-release tablets belong to beta-blockers, which are suitable for angina pectoris, hypertension, and symptomatic stabilized chronic heart failure accompanied by abnormal left ventricular systolic function; Metoprolol tartrate tablets are beta-adrenergic receptor blocking drugs, which are used for the treatment of hypertension, angina pectoris and other diseases. Long-term use of Metoprolol Succinate Extended-Release Tablets in the elderly may result in central and peripheral nervous system abnormalities, including fatigue, dizziness, headache and other symptoms. Some older adults may also experience abnormal gastrointestinal reactions such as chills in the extremities or abdominal pain, nausea, and vomiting. The drug is contraindicated in people who are allergic to it. Elderly people taking Metoprolol Tartrate Tablets for a prolonged period of time may experience adverse reactions such as fatigue, headache, dizziness, coldness in the extremities, palpitations (rapid heartbeat, often accompanied by panic), abdominal pain, cardiogenic shock, and allergy to any of the components in the product or to other beta-blockers. For those who need to take metoprolol succinate extended-release tablets or metoprolol tartrate tablets, it is recommended to go to a regular hospital to consult a doctor and use the medication under the doctor’s guidance, and do not use the medication without authorization.