The generic name of Bayxin Tong is Nifedipine Controlled-Release Tablets, and this antihypertensive medication is recommended to be taken well after meals. The instruction of Nifedipine Controlled-Release Tablets does not specify when to take it, because taking it before meals may have an irritating effect on the stomach and cause stomach upset, it is recommended to take it after the last meal. Nifedipine controlled-release tablets are mainly used for the treatment of hypertension and angina pectoris. Its adverse reactions include peripheral edema, dizziness, headache, nausea, fatigue and facial flushing, and transient hypotension. This product is contraindicated in hypersensitivity to nifedipine, cardiogenic shock. The product should be swallowed whole and not chewed when taken orally. When taking the above drugs to treat related diseases, you need to take them under the guidance of a doctor and in accordance with medical advice, do not take them blindly, so as not to damage the body and aggravate the condition.