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Updated: Jun 20, 2026

Comprehensive Evaluation of the Effectiveness and Safety of Placenta-Targeted Drug Delivery Using Three Complementary Methods
Published on: September 10, 2018
[Correct use of methotrexate].
Monique M Verduijn1, Bart J F van den Bemt, Ben A C Dijkmans
1Nederlands Huisartsen Genootschap, Utrecht, The Netherlands. m.verduijn@nhg.org
Accurate methotrexate (MTX) dosing is crucial due to its narrow therapeutic index. Healthcare professionals need comprehensive knowledge of MTX dosages, side effects, and interactions to prevent overdose and ensure patient safety.
Area of Science:
- Pharmacology
- Clinical Pharmacy
- Toxicology
Context:
- Methotrexate (MTX) overdose incidents highlight knowledge gaps in its safe administration.
- Accurate dosing and understanding potential toxicity are critical for patient safety.
Purpose:
- To emphasize the importance of comprehensive knowledge regarding methotrexate (MTX) dosages, precautions, side effects, interactions, and contraindications.
- To ensure correct MTX prescribing and prevent accidental overdose.
Summary:
- Methotrexate (MTX) is typically prescribed weekly at 5-30 mg, often with folic acid supplementation.
- The toxic dose of MTX is very close to its effective dose, necessitating careful monitoring.
- Healthcare providers must be knowledgeable about MTX to ensure safe and effective treatment.
Impact:
- Improved patient safety through correct methotrexate (MTX) dosing and administration.
- Reduced incidence of MTX-related adverse events and toxicity.
- Enhanced understanding among physicians, pharmacists, and assistants regarding safe MTX management.
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