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

Visiting/delivery address:
Myrens verksted 6H
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

Temporary ATC/DDDs including alterations from the March 2024 meeting
New DDDs for combination products
Course 2024
New ATC/DDDs and alterations included in the index of 2024
New DDDs for combination products
ATCvet

Last updated: 2024-05-08