Norwegian Prescription Database (NorPD)
The Prescription Database gives an overview over all prescription drugs dispensed from pharmacies in Norway. Drugs used in hospitals, nursing homes and for animals are also included.
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WHO Collaborating Centre for Drug Statistics Methodology
WHO Collaborating Centre for Drug Statistics Methodology
The Anatomical Therapeutic Chemical (ATC) classification system and the Defined Daily Dose (DDD) as a measuring unit have become the gold standard for international drug utilisation research.