WHOCC
Postal address:
WHO Collaborating Centre for Drug Statistics Methodology
Norwegian Institute of Public Health
P.O.Box 4404 Nydalen
0403 Oslo
Norway

Visiting/delivery address:
Marcus Thranes gate 6
0473 Oslo
Norway

Tel:  +47 21 07 81 60
Fax: +47 21 07 81 46
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 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

ATC classification of combinations of opioids and other analgesics
ATC/DDD course 9-10 June 2016 in Oslo
New ATC/DDD included in the index of 2016
List of DDDs for three years revision
Updates of the list of DDDs for combined products
ATCvet

Last updated: 2016-01-22