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

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Norway

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DDD alterations from 2005-2018

Cumulative overview of all DDD alterations performed in the period 2005-2018. The year changed is when the alterations were implemented in the ATC/DDD Index. Please note that a DDD may have changed more than once for some ATC codes. The ATC codes are current codes. For substances where the DDD is changed twice the new DDD which is not according to current value is marked with an asterix (*).

List of abbrevations

SubstancePrevious DDDNew DDD*Present ATC codeYear changed
calcium acetate2gO6gOV03AE072017
tiotropium bromide18mcg 4)Inhal. powder10mcg 4)Inhal. powderR03BB042017
risperidone1.8mgP depot2.7mgP depotN05AX082010
levetiracetam2gO1.5gON03AX142005
fentanyl0.6mgTD1.2mgTDN02AB032005
ibrandronic acid5mgP6mgPM05BA062007
daclizumab0.35gP5mgPL04AC012018
sirolimus6mgO3mgOL04AA102006
amprenavir2.4gO1.2gOJ05AE052006
posaconazole0.8gO0.3gOJ02AC042017
ceftezole6gP3gPJ01DB122008
amoxicillin and enzyme inhibitor1gP3gPJ01CR022005
ampicillin and enzyme inhibitor23)P63)PJ01CR012017
desmopressin0.36mg 1)SL0.24mg 1)SLH01BA022009
mifepristone0.6 gO0.2gOG03XB012017
human menopausal gonadotrophin30UP75UPG03GA022016
atorvastatin10mgO20mgOC10AA052009
fluvastatin40mgO60mgOC10AA042009
pravastatin20mgO30mgOC10AA032009
lovastatin30mgO45mgOC10AA022009
simvastatin15mgO30mgOC10AA012009
blood coagulation factors1deleted 2)B02BD2017
apixaban5mgO10mgOB01AF022016
rivaroxaban10mgO20mgOB01AF012016
dabigatran etexilate 0.22gO0.3gOB01AE072016
thioctic acid0.2gO,P0.6gO,PA16AX012017
gliclazide0.16gO60mgOA10BB092011
alosetron2mgO1mgOA03AE012005
glycopyrronium bromide3mgP0.3mgPA03AB022018
esomeprazole20mgO30mgOA02BC052005
1) Base.
2) DDDs for the various blood coagulation factors in all ATC 5th level codes in B02BD are deleted. No new DDDs will be established in B02BD Blood coagulation factors.
3) Refers to ampicillin.
4) The DDD for tiotropium bromide is unchanged but has been defined as the content of one inhalation capsule (18 mcg) as tiotropium. Since there are different inhalation capsules on the market containing different amounts of active substance, the DDD is now defined as the delivered dose, which is the same (10 mcg) as tiotropium for all products.

Last updated: 2018-02-13