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:
 
Copyright/Disclaimer
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

New DDDs for combinations products
Temporary ATC/DDDs including alterations from the October 2021 meeting
New ATC/DDDs and alterations included in the index of 2022
New DDDs for combination products
Temporary ATC/DDDs including alterations from the March 2021 meeting
ATCvet

Last updated: 2021-11-24