Abstract:Pulmonary toxicity is the most well-known severe complication related to both methotrexate and nitrofurantoin, which can present as acute, subacute, and chronic. Rheumatoid arthritis is also known to cause pulmonary disease if left untreated. In this report, we present a unique case of a 94-year-old female being treated with methotrexate for several years and then treated with nitrofurantoin in the setting of rheumatoid arthritis and chronic urinary tract infections, resulting in irreversible pulmonary fibrosi… Show more
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