Abstract:Background
Methotrexate (MTX) is the most commonly used disease modifying anti-rheumatic drug (DMARD) for the treatment of rheumatoid arthritis (RA). Methotrexate pneumonitis (MP) is a potentially fatal hypersensitivity reaction with a mortality rate of ∼20%, the risk being maximal in the first year of treatment. The incidence of MP is higher in patients with pre-existing lung disease, particularly interstitial lung disease (ILD). Early identification of these patients provides the opportunity to offer an alte… Show more
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