The best time to take Metoprolol Tartrate 25mg cannot be generalized. It is usually taken in the morning and evening, or within a few hours of the onset of the disease, depending on the condition. Clinically, metoprolol tartrate belongs to the beta receptor antagonist, after taking it can inhibit myocardial contractility and slow down the heart rate, so as to play a role in lowering blood pressure. It is mainly used in the treatment of hypertension, angina pectoris, myocardial infarction, aortic coarctation, arrhythmia, hyperthyroidism and other diseases. 1. If it is used for the treatment of hypertension, angina pectoris, hyperthyroidism and other diseases, it is recommended to take it in the morning and at night. 2. If it is used for the treatment of acute myocardial infarction, it should be used within a few hours of the onset of the disease, which can reduce the extent of infarction and short-term mortality. Usually the drug may cause dizziness after administration. Headache, vomiting, abdominal pain and other discomforts. It is contraindicated for people with cardiogenic shock, sick sinus node syndrome. It is necessary to monitor renal function, liver function and blood pressure during the administration of the drug. For driving vehicles, athletes should be used with caution, pregnant and lactating women need to use the drug under medical supervision. It is recommended to consult a doctor in time to decide the dosage of the drug and the time to take the drug after a comprehensive assessment of the condition.