M04A Antigout preparations M04AA Preparations inhibiting uric acid production M04AA01 Allopurinol M04AA02 Tisopurine M04AA03 Febuxostat M04AA51 Allopurinol, combinations M04AB Preparations increasing uric acid excretion M04AB01 Probenecid M04AB02 Sulfinpyrazone M04AB03 Benzbromarone M04AB04 Isobromindione M04AB05 Lesinurad M04AC Preparations with no effect on uric acid metabolism M04AC01 Colchicine M04AC02 Cinchophen M04AX Other antigout preparations M04AX01 Urate oxidase M04AX02 Pegloticase References M04