Captopril tablets and nifedipine tablets are both drugs for hypertension, but the two have different components, pharmacological effects, indications, etc., and the therapeutic effect will be different, there is no so-called “which one is better”, and the doctor should choose the right drug for the treatment according to the patient’s condition, physical condition, etc. Captopril is a competitive angiotensin-converting enzyme inhibitor, which can reduce peripheral vascular resistance and decrease sodium retention by inhibiting aldosterone secretion. Captopril is a competitive angiotensin-converting enzyme inhibitor, can reduce peripheral vascular resistance, and by inhibiting aldosterone secretion, reduce sodium retention, but also increase cardiac output and exercise tolerance time, is mainly used in the treatment of hypertension, heart failure. Adverse effects of captopril tablets include rash, fever, palpitations, tachycardia, chest pain, cough, and dullness of taste. It is contraindicated in women during pregnancy and in those who are allergic to angiotensin-converting enzyme inhibitors. Nifedipine is a dihydropyridine calcium antagonist, which can simultaneously diastole the coronary arteries in the normal blood supply area and ischemic area, relieve and prevent coronary artery spasm, and also inhibit myocardial contraction, reduce myocardial oxygen consumption, and also reduce systolic blood pressure and diastolic blood pressure, thus reducing the cardiac afterload, and is able to treat angina pectoris and hypertension. Adverse reactions of nifedipine tablets include facial flushing, palpitations, sinus tachycardia, numbness of the base of the tongue, dry mouth, sweating, headache, nausea, and loss of appetite. It is contraindicated in women during pregnancy and in those who are allergic to the product. It is recommended that patients with hypertension should go to the hospital in a timely manner, under the guidance of the doctor to use appropriate drugs, not blindly self-medication, so as not to delay their own condition.