Drug Classes and Mechanisms · USMLE Step 1

Which antihypertensive drug class can be combined with others for additive BP lowering effects due to differing mechanisms (e.g., volume, vascular tone, neurohormonal control)?

  1. Only agents within the same drug class
  2. Several different antihypertensive drug classes
  3. One diuretic paired with another diuretic
  4. Antihypertensive agents must never be combined
Show answer and explanation

Correct answer: Several different antihypertensive drug classes

Combining drugs from different classes (e.g., an ACE inhibitor with a diuretic or calcium channel blocker) targets different mechanisms (volume, vasodilation, hormonal), enhancing BP control while minimizing dose-related side-effects.

Difficulty: Medium Question 19 of 19

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