The generic name of Betalucil is Metoprolol Tartrate Tablets. If there is no abnormal reaction in the body, this drug can be taken for a long period of time; if there is a serious abnormality in the circulatory, gastrointestinal, respiratory and other systems, the drug should not be used for a long period of time. Whether Metoprolol Tartrate Tablets can be taken for a long time needs to be determined according to the health condition. If the patient does not have any other abnormal reaction when using the drug, and the condition is under stable control, this situation is usually under the guidance of a professional doctor for long-term use of the drug. If the patient has severe bradycardia, cold limbs, shortness of breath, severe vomiting and other abnormal reactions, long-term use of the drug is not recommended. Metoprolol tartrate tablets is a beta-adrenergic receptor blocking drug, the main treatment of angina pectoris, myocardial infarction, aortic coarctation, hypertension, hypertrophic cardiomyopathy, hyperthyroidism, cardiac neurosis and other diseases. The drug is contraindicated in patients with cardiogenic shock, sick sinus node syndrome, atrioventricular block of II and III degrees, symptomatic bradycardia or hypotension. During the use of the drug, patients may experience adverse reactions such as headache and dizziness, body fatigue, coldness in the extremities, bradycardia, palpitations, stomach pain, nausea and vomiting, diarrhea or constipation, etc. These adverse reactions are usually related to the dosage taken, so individuals should not use the drug indiscriminately, and must strictly follow the doctor’s instructions.