It is not true that antihypertensive drugs have too many side effects. The side effects of antihypertensive drugs commonly used in clinical practice are relatively few, and only a small number of patients will experience side effects. Clinically used antihypertensive drugs include diuretics, calcium antagonists, ACEI antihypertensive drugs (angiotensin-converting enzyme inhibitors), ARB antihypertensive drugs (angiotensin receptor antagonists), and beta-blockers. 1. Diuretics: mainly hydrochlorothiazide, furosemide, etc. Side effects such as electrolyte disorders may occur. 2. Calcium antagonists: mainly nifedipine, amlodipine, etc. Side effects such as palpitations and tachycardia may occur. 3. ACEI antihypertensive drugs: mainly captopril, fosinopril, etc. Side effects such as hyperkalemia and angioneurotic edema may occur. 4. ARB antihypertensive drugs: mainly chlorosartan, irbesartan, etc. Side effects such as cough may occur. 5. β-blockers: mainly propranolol, bisoprolol, etc. Side effects such as bradycardia may occur. The use of medication should be under the guidance of a doctor and should not be used without authorization.