Nifedipine extended-release tablets belong to calcium antagonist. 1.It has good antihypertensive effect and is a strong antihypertensive drug, which can be used for the treatment of hypertension. 2.The treatment of angina pectoris, this product is suitable for exertional angina pectoris, including cold-induced angina pectoris. 3.The treatment of pulmonary hypertension, for hypoxic pulmonary hypertension, the effect is better. 4.This product is effective for Raynaud’s phenomenon, cardia incontinence Effective. Since this product has a certain degree of negative inotropic effect and can accelerate the heart rate, it is generally not recommended for patients with heart failure and patients with acute myocardial infarction. In clinical applications, it is often seen to cause side effects such as headache, facial flushing and ankle edema.