47. Allopurinol is in a class of medicationswhich can alleviate the production of uric acid in the body. Which of the following statement is incorrect for allopurinol? (A) Allopurinol is used to reduce gout attacks. (B) Allopurinol undertakes metabolism in the liver where it transforms into its active metabolite. (C) Allopurinol is a structural isomer of hypoxanthine. (D) Allopurinol is a uricosuric, it cannot be used in people with poor kidney function. (E)Allopurinol is an inhibitor of the enzyme xanthine oxidase.