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

Visiting/delivery address:
Myrens verksted 6H
0473 Oslo
Norway

Tel:  +47 21 07 81 60
E-mail:
 
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DDD alterations

ATC codeATC level name Previous DDD New DDD
N03AX26fenfluramine8 mg O14 mg O

Last updated: 2025-12-22