Amlodipine tablets are antihypertensive drugs that lower blood pressure. Amlodipine is a calcium channel blocking drug, which is a class of antihypertensive drugs used more frequently in clinical practice. Amlodipine can selectively inhibit the transmembrane entry of calcium ions into smooth muscle cells and cardiomyocytes, and its antihypertensive mechanism of action is to directly relax vascular smooth muscle, reduce peripheral vascular resistance, thereby reducing blood pressure. Amlodipine is mainly used in the treatment of essential hypertension, chronic stable angina and variant angina. Amlodipine is well tolerated, in the process of medication, some patients may experience fatigue, dizziness, headache, edema, abdominal pain and other adverse reactions, patients should be strictly in accordance with the requirements of the doctor to use the drug, not to increase the dose arbitrarily, causing systemic hypotension. In addition, patients with severe hypotension and severe aortic stenosis should be prohibited from using this drug to avoid serious effects. Amlodipine is a prescription drug, patients should be used under the guidance of a physician, to exclude contraindications to the use of drugs, to avoid blind self-medication.