Severe neutropenia due to naproxen therapy in rheumatoid arthritis: a case report and review of literature.

Rheumatoid arthritis is a chronic inflammatory disease that primarily affects the joints and is often treated with non-steroidal anti-inflammatory drugs (NSAIDs) on demand and disease-modifying antirheumatic drugs (DMARDs), with a relatively low risk of side effects. Although an infrequent side effect, neutropenia has been described as a sequel of NSAIDs. We report a case of neutropenia proven (by rechallenge) to be due to naproxen therapy. The literature on neutropenia during treatment with NSAIDs and DMARDs is briefly reviewed.