Nifedipine is commonly used to lower blood pressure and treat angina pectoris. 1. Antihypertensive, high blood pressure patients take this product has a certain therapeutic effect, need to monitor the blood pressure, according to the blood pressure control, adjust the dose of nifedipine or combined with other antihypertensive drugs for treatment. 2. Treatment of angina pectoris, for chronic stable angina pectoris can take this product as an auxiliary treatment, but need to use other drugs under the guidance of the doctor, such as may need to use isosorbide nitrate tablets and other related drugs for treatment. When using nifedipine tablets, it should be noted that you should generally choose nifedipine extended-release tablets or nifedipine controlled-release tablets. Ordinary nifedipine tablets have the effect of rapid lowering of blood pressure, but the maintenance time is shorter, blood pressure fluctuation is too large, should only be used in the emergency treatment of hypertension, not as a long-term maintenance treatment of the drug program. Nifedipine may cause edema, headache, palpitations and other adverse reactions, allergic to the product should be prohibited from use, not self-medication, need to be under the guidance of a doctor.