Drug Classes and Mechanisms · USMLE Step 1

A drug that blocks L-type calcium channels in vascular smooth muscle to cause vasodilation belongs to which class?

  1. Beta-blockers
  2. Calcium channel blockers
  3. ACE inhibitors
  4. Diuretics
Show answer and explanation

Correct answer: Calcium channel blockers

Calcium channel blockers inhibit voltage-gated L-type calcium channels in vascular smooth muscle, preventing calcium influx and causing vasodilation.

Difficulty: Medium Question 2 of 19

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