Figure 3.

 Veterans Health Administration patient utilization of antihypertensive monotherapy by drug class (fiscal year [FY] 2000 to 2006). Drug classes include angiotensin‐converting enzyme inhibitors (ACEI); β‐adrenergic blockers (BB); thiazide diuretics (Thiazide); calcium channel blockers (CCB); α₁‐adrenergic blockers (Alpha); loop plus other diuretics (Loop); angiotensin II receptor antagonists (ARB); and other (eg, clonidine, hydralazine, methyldopa, reserpine, and related medications). *Representative sample.