Pharmacology · single question
What is the mechanism of action of allopurinol (used for gout)?
Show answer and explanation
Correct answer: B. Xanthine oxidase inhibitor
- A. Uricosurics (e.g., probenecid) increase excretion; allopurinol works differently.
- B. Correct. Allopurinol inhibits xanthine oxidase, decreasing uric acid production.
- C. COX inhibition describes NSAIDs.
- D. Microtubule inhibition describes colchicine, not allopurinol.