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Papers of the Week


2022 Oct 19


Dermatol Ther

Fatal low-dose methotrexate toxicity: a case report and literature review.

Authors

Ouellette S, Shah R, Razi S, Ashforth G, Wassef C
Dermatol Ther. 2022 Oct 19:e15945.
PMID: 36259229.

Abstract

Methotrexate (MTX) is a chemotherapeutic agent that acts primarily by inhibiting the folic acid cycle. In addition to its application for treating malignancies, MTX is also used to treat chronic inflammatory diseases including psoriasis. Adverse effects have been reported even at low doses (up to 25 mg/week), and there is risk of toxicity in the form of myelosuppression, hepatotoxicity, or pulmonary fibrosis.