Methotrexate (MTX) is a common medication used to treat rheumatoid arthritis (RA). MTX inhibits rapid cell turnover throughout the body which can lead to significant side effects. Patients who present with oral lesions may have suffered severe acute toxicity from MTX. Supportive pain treatment includes magic mouthwash solution and/or oral viscous lidocaine to manage pain and allow for healing. We report a case of MTX induced oral mucositis that did not respond to magic mouthwash but did improve with a morphine mouthwash solution.
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Hosseini et al. (2024) studied this question.
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