The medical name of Baixin Tong is Nifedipine Controlled-Release Tablets, which is effective in the treatment of hypertension, but Nifedipine Controlled-Release Tablets have side effects, and headache, edema and other adverse reactions may occur after taking them. Nifedipine controlled release tablets is a kind of calcium channel antagonist class of drugs, clinically mainly used for the treatment of hypertension, for the drug is sensitive to the patient, the effect of lowering blood pressure is better, if the effect of lowering blood pressure after taking the drug is not obvious need to adjust the drug under the guidance of a professional doctor in a timely manner. In addition, within 20 weeks of pregnancy and lactating women are prohibited from taking this drug, patients with cardiogenic shock and patients with ileostomy after rectal colon resection and patients who are allergic to this product are prohibited from taking this drug. Nifedipine controlled-release tablets should be taken under the guidance and advice of a doctor, patients should not take it at will, and in the process of taking it, if there is lethargy, aggravation of angina pectoris, liver function abnormalities and other adverse reactions, the drug should be discontinued and seek medical treatment in a timely manner.