Methotrexate Toxicity

Medical Review

Written by: Dr. Von Chiao Wen Doctor of Medicine (MD), N.I. Pirogov Russian National Research Medical University
Reviewed by: Dr. Lee Chin Meng Doctor of Medicine (MD), Manipal Academy of Higher Education (MAHE)

Overview of Methotrexate Toxicity

Methotrexate is a chemotherapeutic drug utilized for the treatment of various illnesses such as cancer, rheumatoid arthritis, systemic lupus erythematosus, and psoriasis. Methotrexate toxicity occurs when there is an overdose of the medication.

Signs and Symptoms of Methotrexate Toxicity

Alopecia, Photosensitivity, Rash, Fatigue, Fever with chills, Gastrointestinal bleed, Reddening of skin, Gingivitis, Nausea, Vomiting, Diarrhea, Hypotension, Headache, Seizures, Encephalopathy

Common Causes of Methotrexate Toxicity

Accidental overdose of methotrexate tablets by the patient or physician, Increased patient susceptibility during the treatment , Intentional self-administration

Risk Factors of Methotrexate Toxicity

Underlying acute renal failure or hypoalbuminemia, Alcohol intake, Use of other medications that may interact with methotrexate such as trimethoprim and non-steroidal antiinflammatory drugs and salicylates

Investigation Techniques for Methotrexate Toxicity

Full blood count, Urine analysis, Urine FEME, Kidney function test, Liver function test, Serial methotrexate concentrations, urine output

Treatment and Prevention of Methotrexate Toxicity

Gastric lavage with activated charcoal, Antidote (Folinic acid) administration, Adequate hydration and urinary alkalinization, Hemodialysis

Available Methotrexate Toxicity Medicines

No medicines currently available for this condition.

Confirm Action
×

Are you sure?

×