Betalucil generally refers to metoprolol tartrate tablets, some patients can take 1/4 tablet, but patients need to strictly follow the doctor’s instructions to use the drug. Metoprolol tartrate tablets can be used in the clinic mainly for the treatment of hypertension, angina pectoris, myocardial infarction, hyperthyroidism, hypertrophic cardiomyopathy, aortic coarctation, arrhythmia and so on, and can also be used in the treatment of heart failure. However, the drug is contraindicated in patients with cardiogenic shock, sick sinus node syndrome, atrioventricular block of II and III degrees, unstable and decompensated heart failure, as well as in patients with symptomatic bradycardia, continuous or intermittent treatment with beta agonists with orthostatic potentiation, severe peripheral vascular disease with the risk of gangrene, and allergy to the drug. The specifications of the drug can generally be divided into three kinds, namely 25mg, 50mg and 100mg. If the patients are taking the drug for the treatment of hypertension, arrhythmia, hypertrophic cardiomyopathy, angina pectoris and hyperthyroidism, they usually take 25~50mg each time, 2~3 times a day. If a patient is taking 100mg of this medication, but only needs to take 25mg, then 1/4 tablet may be taken. If the patient is required to take 100~200mg, it is not advisable to take 1/4 tablet, which is not conducive to disease control. Some patients may experience adverse reactions such as fatigue, headache, bradycardia, palpitations, dizziness, abdominal pain, nausea, etc., after taking the drug, and a small number of patients may also show weight gain and chest pain. Patients are advised to take Metoprolol Tartrate Tablets reasonably according to their own conditions and under the guidance of the doctor, and some patients with mild conditions may take 1/4 tablet.