Febuxostat is a non-purine selective inhibitor of the enzyme xanthine oxidase and is FDA-approved for the chronic management of hyperuricemia in patients diagnosed with gout. Febuxostat is a non-purine-selective inhibitor of xanthine oxidase that reduces uric acid production in the body. It is used to treat chronic gout and hyperuricemia, but it may have serious side effects and interactions with other drugs. Febuxostat is a xanthine oxidase inhibitor used for the management of chronic hyperuricemia in adults with gout who have an inadequate response or intolerance to allopurinol. Gout happens when there is too much uric acid in your body and it forms into crystals that can appear around your joints leading to painful and swollen joints. This medicine helps to keep uric acid levels low. Febuxotab 40 Tablet can be taken with or without food.