The generic name of Baixin Tong is Nifedipine Controlled-Release Tablets, after taking the medicine, the blood pressure is reduced, usually need to continue to take the medicine, in order to maintain the stability of the blood pressure level, if there is dizziness and other symptoms of low blood pressure, it is recommended to consult a doctor in time to adjust the dosage or change the medication regimen under the guidance of the doctor. Nifedipine controlled-release tablets work by inhibiting the inward flow of calcium ions, can dilate coronary arteries and peripheral blood vessels, the main effect is to lower blood pressure. Once hypertension is clearly diagnosed, it cannot be completely cured. After taking the medicine, the blood pressure level will decrease to a certain extent, but the blood pressure level will still increase after stopping the medicine, and patients with high blood pressure have to take oral medication for a long period of time to keep the blood pressure level stable. Patients with high blood pressure should take oral medication for a long period of time to keep their blood pressure level steady. The medication should not be stopped suddenly or on its own, so as not to cause fluctuations in blood pressure levels, which may lead to acute cardiovascular and cerebrovascular diseases. Adverse reactions of nifedipine controlled-release tablets include lower limb edema, constipation, dry stools, tachycardia, etc. It is forbidden for patients who are allergic to the drug components, have severe aortic stenosis, or who are taking rifampicin orally. Nifedipine controlled-release tablets for the treatment of hypertension, the choice of drugs under the guidance of a physician, while paying attention to the adverse effects of the drug.