Levamlodipine has few side effects when taken in normal doses. Levamlodipine is a class of dihydropyridine calcium antagonist, used for the treatment of hypertension, angina pectoris, the initial dose of 2.5mg, once a day, can be increased according to the actual needs of the dose, usually not more than 5mg / day, once a day. The antihypertensive mechanism of levitra amlodipine is to block the extracellular calcium inward flow in cardiomyocytes and vascular smooth muscle cells, diastole vascular smooth muscle, thus lowering the blood pressure; the mechanism of relieving angina pectoris is to dilate the peripheral small arteries, dilate the coronary arteries in the lesion area, and improve the myocardial oxygen supply. Because of its large dilatation effect on peripheral small blood vessels, headache, nausea, abdominal pain, red face, edema, fatigue and other conditions can occur. Because it is related to the cardiomyocyte and vascular smooth muscle cell calcium in-flow, hypotension, arrhythmia, peripheral ischemia, etc., levitra amlodipine caused by hypotension most often occurs in patients with severe aortic stenosis; the respiratory system can be dyspnea; the reproductive system can be sexual dysfunction; the urinary system can be urinary disorders, nocturia and so on. Levamlodipine is mainly metabolized by the liver, and regular liver function tests are required for long-term use in patients with impaired liver function. Hypertensive patients must take antihypertensive drugs under the guidance of a doctor, need to monitor the effect of drugs to lower blood pressure in a timely manner, if necessary, joint use of drugs, if there is any abnormality in a timely manner to prevent delays in the condition of the doctor.