Drug Safety

, Volume 23, Issue 2, pp 95–99 | Cite as

The Value of Reporting Therapeutic Ineffectiveness as an Adverse Drug Reaction

  • Ronald H.B. Meyboom
  • Maire Lindquist
  • Anna-Karin Flygare
  • Cecilia Biriell
  • I. Ralph Edwards
Current Opinion


Therapeutic ineffectiveness is a frequent drug-related problem that can occur in a variety of different situations and be caused by different mechanisms. Examples are inappropriate use, interactions or metabolic abnormalities. Observations in patients of unexpected ineffectiveness can provide important information with regard to such situations. Therefore, ineffectiveness — especially when unexpected or unexplained — is a potentially important reportable event in pharmacovigilance. The terms regarding ineffectiveness in the WHO Adverse Reaction Terminology (WHOART) have been recently revised in order to enable optimal coding of such case reports.


Enzyme Induction Spontaneous Reporting Therapeutic Failure Medical Drug Pharmacovigilance Centre 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



We thank Caroline Brock of EQUUS, London, for excellent administrative support, particularly in allowing us to capture the results of the workshop at the WHO Programme for International Drug Monitoring Annual Meeting, Ankara, Turkey, 1999.


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Copyright information

© Adis International Limited 2000

Authors and Affiliations

  • Ronald H.B. Meyboom
    • 1
  • Maire Lindquist
    • 1
  • Anna-Karin Flygare
    • 1
  • Cecilia Biriell
    • 1
  • I. Ralph Edwards
    • 1
  1. 1.The Uppsala Monitoring CentreWHO Programme for International Drug MonitoringUppsalaSweden

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