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  1. 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 ...

  2. In the Anatomical Therapeutic Chemical (ATC) classification system, the active substances are divided into different groups according to the organ or system on which they act and their therapeutic, pharmacological and chemical properties. Drugs are classified in groups at five different levels.

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  4. The Anatomical Therapeutic Chemical (ATC) classification system and the Defined Daily Dose (DDD) as a measuring unit have become the gold standard for international drug utilization research.The ATC/DDD system is a tool for exchanging and comparing data on drug use at international, national or local levels.

  5. Mar 17, 2021 · Each medicine is allocated a unique code using the anatomical therapeutic chemical (ATC) classification system, and a defined daily dose (DDD). This universally-accepted methodology comprises letters and numbers and facilitates international, national, and regional comparisons.

    • Samantha Hollingworth, Therése Kairuz
    • 2021
  6. classification system for drug utilization studies. As a result the Drug Utilization Research Group (DURG) was established and entrusted with the development of

  7. A comprehensive guide regarding ATC and DDD can be found here . The Guidelines includes information on the ATC Classification system and general principles of DDDs assignment. Information necessary for allocating ATC codes and DDDs at a national or local level can be found in the Guidelines.

  8. Description. ATC classifies drugs at five different levels. Each level is a different grouping of drugs. Groupings of active substances include the organ or system on which the drug acts as well as therapeutic, pharmacological, and chemical properties of the drug. Metathesaurus Scope.

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