Pharmacology · single question
What is the mechanism of action of lisinopril?
Show answer and explanation
Correct answer: A. Angiotensin-converting enzyme (ACE) inhibitor
- A. Correct. Lisinopril blocks ACE, preventing conversion of angiotensin I to II, causing vasodilation; classic side effect is a dry cough.
- B. ARBs (e.g., losartan) block the receptor, not the enzyme.
- C. Beta-blockers act on adrenergic receptors, a different class.
- D. CCBs block calcium influx; a different mechanism.