Anatomical Therapeutic Chemical Classification System

The Anatomical Therapeutic Chemical (ATC) Classification System is a drug classification system that classifies the active ingredients of drugs according to the organ or system on which they act and their therapeutic, pharmacological and chemical properties. Its purpose is an aid to monitor drug use and for research to improve quality medication use. It does not imply drug recommendation or efficacy.[1] It is controlled by the World Health Organization Collaborating Centre for Drug Statistics Methodology (WHOCC), and was first published in 1976.[2][3][4]

  1. ^ "Purpose of the ATC/DDD system". WHO Collaborating Centre for Drug Statistics Methodology. Archived from the original on 14 January 2010. Retrieved 6 July 2021.
  2. ^ "ATC/DDD Methodology: History". WHO Collaborating Centre for Drug Statistics Methodology. Archived from the original on 2010-03-14. Retrieved 2009-12-26.
  3. ^ "ATC alterations from 2005-2019". WHOCC. 28 November 2019. Archived from the original on 27 July 2013. Retrieved 27 December 2019.
  4. ^ "DDD alterations from 2005-2019". WHOCC. 28 November 2018. Archived from the original on 2 May 2013. Retrieved 27 December 2019.

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