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
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ATC/DDD Index 2024

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ATC code

Name

  • "Name" is defined as the name of the substance (normally the INN name) or the name of the ATC level. Note that trademarks are not searchable.
  • A minimum of three letters must be entered in the name box. Select a query that contain part of or a query that start with the letter entered.
  • For ATC combination levels, please note that all active ingredients would normally not be searchable.

DDD

The DDDs, which will be reviewed in 2024 (3 year revision), are listed here and in the annex I in the printed ATC Index. See also Guidelines: Part III; D Principles for reviewing and changing DDD and Part V; D Requests for changes to DDDs.

To express the DDD several abbreviations are used for units and routes of administration.

Units

g= gram
mg= milligram
mcg= microgram
U= unit
TU= thousand units
MU= million units
mmol= millimole
ml= milliliter (e.g. eyedrops)

Route of administration (Adm.R)

Implant= Implant
Inhal= Inhalation
Instill= Instillation
N= nasal
O= oral
P= parenteral
R= rectal
SL= sublingual/buccal/oromucosal
TD= transdermal
V= vaginal

Last updated: 2024-01-26