The types of antihypertensive drugs mainly include diuretics, beta-blockers, angiotensin-converting enzyme inhibitors, calcium channel blockers and so on. Diuretics and calcium channel blockers are used for mild to moderate hypertension, β-blockers are used in combination with angina, etc. Angiotensin converting enzyme inhibitors are mainly used in combination with diabetes mellitus and coronary heart disease. 1. Diuretics, the most commonly used diuretics are hydrochlorothiazide, which is mainly used for mild to moderate hypertension, and long-term application will cause adverse reactions such as hypokalemia, hyperglycemia, hyperlipidemia and hyperuric acid. 2. β-blockers such as metoprolol are especially suitable for hypertension combined with coronary artery disease and fast heart rhythm, and are prohibited in severe atrioventricular block, asthma, acute heart failure, peripheral vascular disease such as Raynaud’s syndrome, and so on. 3. Angiotensin-converting enzyme inhibitors such as captopril can significantly improve ventricular remodeling, and at the same time applicable to diabetes, coronary artery disease and mild renal dysfunction of patients, but also but easy to cause dry cough and vasogenic edema. Contraindicated in bilateral renal artery stenosis, severe renal insufficiency and so on. 4. Angiotensin II receptor antagonist such as valsartan, mainly used for patients intolerant to angiotensin-converting enzyme inhibitor drugs, for severe renal insufficiency, women during pregnancy, hypotension is prohibited. 5. Calcium channel blockers, such as nifedipine, are suitable for mild to moderate hypertension, especially for the elderly simple systolic hypertension. It is prohibited for women during pregnancy, cardiogenic shock and so on. If you are diagnosed with high blood pressure, you must follow the doctor’s requirements for medication, not self-medication.