The generic name of Baixin Tong is Nifedipine Controlled-Release Tablets, and its main effects are vasodilatation, lowering blood pressure and so on. Nifedipine controlled-release tablets is a dihydropyridine calcium channel blocker that can inhibit the inward flow of extracellular calcium ions and reduce the concentration of intracellular calcium ions. It can act on the coronary arteries of the heart, which helps to relieve myocardial ischemia and other diseases caused by coronary atherosclerosis. Nifedipine controlled-release tablets can also play the role of diastolic peripheral resistance vessels, reduce the role of peripheral circulatory resistance, so that the blood pressure will be reduced, cardiac afterload will also be reduced, the clinic is also often used in the treatment of hypertension, for the control of blood pressure can play a significant role. Dizziness, headache, nausea, peripheral edema and other adverse reactions may occur after use of the drug, cardiogenic shock and allergy is prohibited, it should be noted that with other blood pressure-lowering drugs may appear obvious symptoms of hypotension. Nifedipine controlled release tablets need to be applied under the guidance of a physician, not blindly self-medication.