Diabetic patients can take amlodipine under the supervision of a doctor if there is an indication for the use of the drug. Amlodipine is a calcium channel blocker, which can reduce the vasoconstrictive response of blood vessels, so as to achieve the effect of lowering blood pressure, mainly used in the treatment of hypertension. Amlodipine can be used in patients with hypertension combined with diabetes, coronary heart disease or peripheral vascular disease; long-term treatment also has an anti-atherosclerotic effect. Therefore, diabetic patients can use the drug under medical supervision. Amlodipine is contraindicated in diabetic patients who are allergic to amlodipine, have severe hypotension, or have severe aortic stenosis. Adverse reactions such as nausea, peripheral edema, headache, and palpitations may occur when taking amlodipine. Therefore, diabetic patients can take amlodipine as prescribed by the doctor, avoid self-medication at home to avoid adverse drug reactions, and should go to the hospital in time after taking the medication for adverse reactions.