The generic name of the drug Bayxin Tong is Nifedipine Controlled Release Tablets, which usually starts to have a gradual antihypertensive effect after 30 minutes of administration, with a continuous antihypertensive effect for 24 hours. Nifedipine controlled-release tablets are commonly used antihypertensive drugs in clinical practice, belonging to calcium antagonists, mainly used in the treatment of hypertension and angina pectoris. The dosing time is not limited by the meal time, and the antihypertensive effect usually starts gradually after 30 minutes of dosing. However, due to the slow release of the drug effect of nifedipine controlled release tablets, there is a continuous blood pressure lowering effect within 24 hours. Adverse effects such as pain, edema, vasodilatation, constipation and, in a small number of patients, dizziness, anxiety, palpitations and nausea may occur during the administration of nifedipine controlled-release tablets. When using nifedipine controlled-release tablets, it should be noted that patients who are allergic to the components of the drug, cardiogenic shock, within 20 weeks of pregnancy and breastfeeding women should not be taken, and it should also be noted that it should not be used in combination with rifampicin, which will affect the efficacy of the drug. If you need to use nifedipine controlled-release tablets to control blood pressure, it is recommended that patients consult a professional doctor in a timely manner and take the drug as prescribed by the doctor to avoid adverse consequences.