Data Entry: Please note that the research database will be replaced by UNIverse by the end of October 2023. Please enter your data into the system Thanks

Login for users with Unibas email account...

Login for registered users without Unibas email account...

Methotrexate intoxication : the Pharmaceutical Care process reveals a critical error
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 1006386
Author(s) Arnet, I; Bernhardt, V; Hersberger, K E
Author(s) at UniBasel Hersberger, Kurt
Arnet, Isabelle
Bernhardt, Vera
Year 2011
Title Methotrexate intoxication : the Pharmaceutical Care process reveals a critical error
Journal Journal of clinical pharmacy and therapeutics
Volume 37
Number 2
Pages / Article-Number 242-4
Keywords error, methotrexate, overdose, pharmaceutical services, psoriasis

What is known and objectives: Intoxication with oral low-dose methotrexate (MTX) is a well-known and frequent problem, which is often discovered accidently. The major reason is error in the frequency of dosing, mostly of daily instead of weekly intake. We report a case where the critical error was discovered by the community pharmacist during the routine implementation of the Pharmaceutical Care process SOAP while dispensing a new prescription for the patient. Details of the case: A 78-year-old widow went to her regular community pharmacy to pick up a prescription for oral mucositis. The evaluation of the case by the pharmacist using the SOAP (an acronym for Subjective, Objective, Assessment and Plan) note method revealed the underlying oral low-dose MTX intoxication which led to hospitalization a few days later. The incorrect interpretation of the required dose had arisen from the written instructions for use and led to the erroneous intake of MTX daily (instead of weekly). We interviewed the patient at her home 2†months after discharge. She explained that her continued intake of MTX in spite of manifest adverse effects was because of a profound conviction that she was doing right. Her confidence in physicians remained unchanged after the incident, but she would now refuse to take MTX. What is new and conclusion: The reasons for the intoxication were not discovered accidently but by the routine use of the Pharmaceutical Care process SOAP by the community pharmacist. We describe three main errors that might have been avoided and provide solutions for physicians, pharmacists, manufacturers and patients, to reduce such risks. Our case highlights the dangers of teleconsultation, the crucial role of Pharmaceutical Care provided by community pharmacists and the continued need to supply advice to patients being prescribed low-dose MTX. The fact that a patient has had a previous and successful experience with a similar treatment should not deter health professionals from verifying a patient’s understanding via questions and feedback.

Publisher Blackwell
ISSN/ISBN 0269-4727
Full Text on edoc No
Digital Object Identifier DOI 10.1111/j.1365-2710.2011.01263.x
PubMed ID
ISI-Number WOS:000301111400021
Document type (ISI) Journal Article

MCSS v5.8 PRO. 0.320 sec, queries - 0.000 sec ©Universität Basel  |  Impressum   |