Felodipine extended-release tablets are indicated for the treatment of hypertension and stable angina. It can reduce the resistance of peripheral blood vessels, thus lowering blood pressure and reducing the oxygen demand of the heart muscle. It can also improve the perfusion and oxygen supply of the heart by dilating the coronary blood vessels, thus relieving coronary spasm and achieving the effect of treating angina pectoris. The tablets should be swallowed whole, not bitten or chewed. Adverse reactions such as ankle edema, facial flushing, headache, palpitations, confusion and other adverse reactions may occur after use. Prompt medical attention is recommended for adverse reactions. Use with caution in lactating females, aortic stenosis, hepatic impairment, and heart failure after acute myocardial infarction. Uncompensated heart failure, pregnant women, lactose galactose intolerance, patients with unstable angina pectoris and those who are allergic to the product are prohibited. Patients who want to use felodipine extended-release tablets are advised to go to a regular hospital, consult a professional doctor, cooperate with the doctor to complete the relevant examinations, and avoid blind use of drugs.