Pharmacology · single question
What is the mechanism of action of carvedilol?
Show answer and explanation
Correct answer: A. Beta-blockade (reduces cardiac workload; also alpha-1 blockade)
- A. Correct. Carvedilol is a non-selective beta-blocker with alpha-1 blocking activity; it lowers heart rate/contractility, reducing myocardial workload.
- B. CCBs (e.g., amlodipine) act on calcium channels — a different class.
- C. ACE inhibitors (e.g., lisinopril) block angiotensin conversion.
- D. Direct NO vasodilation describes nitrates/hydralazine, not carvedilol.