Antihypertensive drugs are harmful to the body this statement is wrong, different antihypertensive drugs have different adverse reactions, but the adverse reactions can not be called harmful, on the contrary, hypertension without medication is more harmful, different antihypertensive drugs have different adverse reactions, the more common ones are hypokalemia, hypotension, tachycardia, flushing, irritating dry cough, headache, vertigo and so on. 1. Diuretics: Diuretics are commonly used, such as hydrochlorothiazide, furosemide, amiloride, etc. Long-term use of diuretics can easily lead to hypokalemia, and some people may have elevated cholesterol, blood sugar and uric acid. 2. β-blockers: commonly used drugs include metoprolol, atenolol, bisoprolol, etc. Overdose is easy to lead to hypotension, aggravation of atrioventricular block, bradycardia and other symptoms. 3. Calcium channel antagonists: commonly used drugs include felodipine, nifedipine, amlodipine, etc. Some people will experience symptoms such as tachycardia, flushing, upright hypotension, and digestive discomforts such as constipation and abdominal pain. 4. Angiotensin-converting enzyme inhibitors: commonly used drugs include captopril, enalapril, midazapril, etc. A small portion of the population may experience irritating dry cough after taking them, and in severe cases, angioneurotic edema and deterioration of renal function may occur. 5. Angiotensin II receptor antagonist: commonly used drugs are chlorosartan, valsartan, timosartan, etc., part of the population may have headache, dizziness, palpitations, hypotension and other discomforts after taking. For each person’s choice of antihypertensive drugs are not the same, it is not recommended that patients with high blood pressure to use their own medication, the specific choice of drugs and take under the guidance of a physician to rationalize and personalize the use of medication.