Encyclopedia > Anatomical Therapeutic Chemical Classification System

  Article Content

Anatomical Therapeutic Chemical Classification System

System for classifying drugs. controlled by the WHO Collaborating Centre for Drug Statistics Methodology. First published in 1976.

Drugs are divided into different groups according to the organ or system on which they act and/or their therapeutic and chemical characteristics.

In the system drugs are classified into groups at 5 different levels:

1st level: The first level of the code is based on a letter for the anatomical group, there are 14 main groups. (one alpha character)

AAlimentary tract and metabolism
BBlood and blood forming organs
CCardiovascular system
DDermatologicals
GGenito urinary system and sex hormones
Hsystemic horomal preparations, excluding sex hormones and insulins
JAnti-infectives for systemic use
LAntineoplastic and immuomodulating agents
MMusculo-skeletal system
NNervous system
PAntiparasitic products, insecticides and repellents
RRespiratory system
SSensory organs
VVarious

2nd level: therapeutic main group. (two numeric characters)

3rd level: therapeutic/pharmacological subgroup. (one alpha character)

4th level: chemical/therapeutic/pharmacological subgroup. (one alpha character)

5th level: subgroup for chemical substance. (two numeric characters)

The actual drug name used is the international non-proprietary name (INN).

The ATC/DDD system is the ATC system with the addition of a measure of the assumed average maintenance dose per day for a drug used for its main indication in adults (Defined Daily Doses).

Other ATC classifications are ATCvet (for veterinary medicinal products) and ATC herbal classification (for herbal remedies).

The ATC classification system was based on the Anatomical Classification (AC-system) developed by the European Pharmaceutical Market Research Association[?] (EPhMRA) and the Pharmaceutical Business Intelligence and Research Group[?] (PBIRG).



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Thomas a Kempis

... priest's orders in 1413 and was made subprior 1429. The house was disturbed for a time in consequence of the pope's rejection of the bishop-elect of Utrecht, ...

 
 
 
This page was created in 30.9 ms