A patient with seronegative inflammatory polyarthritis developed a predominantly motorperipheral neuropathy associated with the use of indomethacin. Three other cases of peripheral neuropathy associated with indomethacin treatment have been reported to the Committee on Safety of Medicines. In all cases the neuropathy regressed when indomethacinwas stopped. Peripheral neuropathy should be recognized as a rare complication of indomethacin therapy and considered in the differential diagnosis of a neuropathy accompanyingrheumatoid arthritis.