Baixin Tong, or nifedipine controlled-release tablets, belongs to the calcium channel antagonist class of antihypertensive drugs, has a strong and long-lasting antihypertensive effect, and can be taken for life. Nifedipine controlled-release tablets belong to the calcium channel antagonist class of antihypertensive drugs, no contraindications for use, generally need to be taken consistently for a long time, stop using may cause blood pressure fluctuations, resulting in risk. Nifedipine controlled release tablets dosage time is not restricted, need to pay attention to the use of the drug try not to drink a lot of grapefruit juice, may lead to nifedipine blood concentration increase and prolong the action time of nifedipine, thus enhancing the effect of antihypertensive. Some drugs metabolized by CYP3A4 enzyme, such as macrolides, including erythromycin, fluoxetine, etc., and nifedipine controlled-release tablets, should be careful to monitor blood pressure when used in combination. In addition, when taking nifedipine controlled-release tablets need to pay attention to the occurrence of edema, headache and other adverse reactions, but the symptoms are mild and can be tolerated can be used for a long time. When the blood pressure is poorly controlled, fluctuates significantly, or has adverse reactions, consult a doctor and adjust the medication and dosage under the doctor’s guidance.