Pharmacology · single question
What is the mechanism of action of prazosin?
Show answer and explanation
Correct answer: A. Alpha-1 adrenergic receptor antagonist
- A. Correct. Prazosin blocks alpha-1 receptors causing vasodilation; side effects include dizziness and orthostatic hypotension.
- B. Beta-1 blockade describes atenolol/metoprolol.
- C. ACE inhibition is a separate mechanism.
- D. Prazosin does not act on calcium channels.