The classification of antihypertensive drugs is as follows: 1. calcium antagonists, common drugs include felodipine extended-release tablets, amlodipine tablets, nifedipine extended-release tablets, benidipine tablets, etc. 2. beta-blockers, common drugs include metoprolol tartrate, bisoprolol, betaxolol, butaflumilol, labetalol, esmolol, etc. 3. angiotensin-converting enzyme inhibitors, common drugs include enalapril maleate, benazepril hydrochloride, lenopril, perindopril, fosinopril, etc. 4. 4.Angiotensin II receptor antagonists, common drugs are Irbesartan tablets, Temisartan tablets, Candesartan tablets. 5.Diuretics, common are Furosemide, Spironolactone, Torasemide, Hydrochlorothiazide tablets, etc. 6.And vasodilators such as sodium nitroprusside, nitroglycerin, etc. α1 receptor blockers common are Alfuzosin, Terazosin, etc.