Febuxostat tablets are xanthine oxidase inhibitors, which are drugs that inhibit the production of uric acid and are the first line of treatment for gouty arthritis. Febuxostat tablets are mainly used to lower uric acid in gouty arthritis, but they are not recommended during the acute attack of gout, and uric acid-lowering drugs should be started only after two weeks of joint pain relief. Febuxostat tablets are mainly metabolized by the liver, so long-term use may lead to liver damage and regular liver function check is needed. Fibrates are relatively safe and are preferred for patients with contraindications to allopurinol. Because allopurinol can have serious side effects for Asian patients, such as exfoliative dermatitis, screening for the HLA-B5801 gene is usually required before using the drug, but many patients do not have this condition, so febuxostat can be preferred for treatment.