Which class of antihypertensives is considered more effective in African American patients?

• A. Calcium channel blockers
• B. ACE inhibitors
• C. Beta blockers
• D. Diuretics

Answer: (A)

In African American patients, hypertension often responds best to drugs that reduce vascular resistance rather than those that primarily target the renin-angiotensin system. Calcium channel blockers block L-type calcium channels in vascular smooth muscle, causing potent vasodilation and a meaningful drop in systemic vascular resistance. Since this population commonly has low renin activity, therapies that don’t rely on renin activation tend to produce greater blood pressure reductions, making calcium channel blockers stand out among the options. (Diuretics are also very effective in this group and are frequently used, but among the listed choices, calcium channel blockers are highlighted for their strong vasodilatory effect in this population.)