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
E-mail:
 
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Guidelines for ATC classification and DDD assignment
Published Friday December 22 2017

Please note that the Guidelines 2018 have been revised. The content on the website will be updated accordingly in January 2018.

Last updated: 2018-05-15