Nifedipine Controlled-Release Tablets is a drug mainly used for the treatment of hypertension, coronary heart disease and chronic stable angina pectoris, the specific use of the drug should follow the doctor’s advice. Nifedipine controlled-release tablets are composed of hydroxypropylmethylcellulose, polyethylene oxide, magnesium stearate, sodium chloride and so on, which belong to dihydropyridine calcium antagonist. It can act on the cardiomyocytes and coronary artery cells of peripheral resistance vessels, reduce the entry of calcium ions, thus expanding the coronary arteries, preventing vasospasm, lowering peripheral vascular resistance and reducing blood pressure. It can be used in the treatment of hypertension, coronary heart disease and chronic stable angina, etc. If used improperly, it may cause dizziness, headache, fever, blurred vision, palpitations, edema, diarrhea, exfoliative dermatitis and other symptoms. Patients who are allergic to any of the components of nifedipine, patients with cardiogenic shock, pregnant and breastfeeding women, should disable this drug to prevent serious adverse reactions. Consult your doctor before taking the drug to avoid adverse drug reactions, and follow your doctor’s instructions when taking the drug, not self-medication.