ATC Classification
Browse the Anatomical Therapeutic Chemical (ATC) classification system
ATC Hierarchy
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Classification Levels
The ATC system divides drugs into groups at 5 different levels
AnatomicalLevel A
Main anatomical group
N - Nervous System
TherapeuticLevel T
Therapeutic subgroup
N02 - Analgesics
PharmacologicalLevel P
Pharmacological subgroup
N02B - Other analgesics
ChemicalLevel C
Chemical subgroup
N02BE - Anilides
SubstanceLevel CS
Chemical substance
N02BE01 - Paracetamol
Anatomical Groups
14
Chemical Subgroups
900+
Drug Substances
5,000+
Select an ATC code from the tree to view its details, associated drugs, and pharmacogenomics data.
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