Home › MCQs › OPRA Pharmacology and Toxicology › Question #3853
Back to Questions
OPRA Pharmacology and Toxicology QUESTION #3853
Question 1
Through which mechanism does allopurinol lower serum uric acid levels?
  • To increase renal excretion of uric acid
  • To inhibit formation of uric acid✔️
  • To inhibit absorption of dietary purines
  • To inhibit prostaglandin synthesis
Correct Answer Explanation
Allopurinol inhibits xanthine oxidase, thereby reducing the enzymatic conversion of hypoxanthine and xanthine to uric acid.