Hence , febuxostat inhibits xanthine oxidase , therefore reducing production of uric acid .
Xanthine oxidase is needed to successively oxidize both hypoxanthine and xanthine to uric acid .
Febuxostat inhibits xanthine oxidase , therefore reducing production of uric acid .
Xanthine oxidase is needed to successively oxidize both hypoxanthine and xanthine to uric acid .