WHOCC
Postal address:
WHO Collaborating Centre for Drug Statistics Methodology
Norwegian Institute of Public Health
Postboks 222 Sk°yen
0213 Oslo
Norway

Visiting/delivery address:
Sandakerveien 24C
Bygg C
0473 Oslo
Norway

Tel:  +47 21 07 81 60
E-mail:
 
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ATC/DDD

International language for drug utilization research

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 monitoring and research.

The ATC/DDD system is a tool for exchanging and comparing data on drug use at international, national or local levels.

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News

New DDDs for combination products
Temporary ATC/DDDs including alterations from the March 2021 meeting
Public consultation: New classification of L01XC Monoclonal antibodies
ATC/DDD course 10 June 2021 - webinar
New ATC/DDDs and alterations included in the index of 2021
ATCvet

Last updated: 2021-08-09