Commonly used drugs include beta blockers such as metoprolol , atenolol , labetalol , carvedilol , ACE inhibitors such as lisinopril , quinapril , fosinopril , captopril , enalapril , ramipril ; angiotensin receptor blockers ( ARBs ) such as losartan , valsartan , irbesartan ; calcium channel blockers such as amlodipine , verapamil ; diuretics , such as chlortalidone , hydrochlorothiazide ( HCTZ ) , combination products ( usually contains HCTZ and another drug ) , and alpha blockers such as terazosin and prazosin . Commonly used prescription drugs include : ACE inhibitors , alpha blockers , angiotensin II receptor antagonists , beta blockers , calcium channel blockers , diuretics ( e.g. hydrochlorothiazide ) , direct renin inhibitors .