DDD per box

Define Daily Dose per box

Sébastien MEIGE avatar
Written by Sébastien MEIGE
Updated over a week ago


The DDD (or Define Daily Dose) is defined by the World Health Organization (WHO) as the average recommended dose of active ingredient per day for a medicine used for its main indication in adults.
Only one DDD is assigned per WHO ATC classification code and route of administration.
More information can be found on the WHO website: https://www.whocc.no/atc_ddd_index/
The DDD per box expresses the recommended number of days of treatment for one box.


Let's take the example of a box containing 30 capsules (BUs or base units) each containing 50 milligrams of the active ingredient PA.

Number of base units in the box x active ingredient dosage of one base unit
That is: 30 capsules x 50 mg = 1,500 MG of the active ingredient PA for one box.
The DDD of this product is 300 MG per day.
So the DDD per box is calculated as: Active ingredient dosage of the box / DDD
= 1,500 / 300, or 5 days of recommended treatment.


The DDD per box indicator can be translated into English as "DDD per package".


This indicator is only available for pharmacy data and only for medicines


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