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:
Marcus Thranes gate 6
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.

Welcome to the WHO Collaborating Centre for Drug Statistics Methodology

 

News

Updates of the list of DDDs for combined products
New ATC/DDDs and alterations from the March 2018 meeting
ATC/DDD course in Oslo 7-8 June 2018
Guidelines for ATC classification and DDD assignment
Updates of the list of DDDs for combined products
ATCvet

Last updated: 2018-05-15