The Anatomical Therapeutic Chemical (ATC) Classification System is used for the classification of drugs. It is controlled by the WHO Collaborating Centre for Drug Statistics Methodology (WHOCC), and was first published in 1976.
This pharmaceutical coding system divides drugs into different groups according to the organ or system on which they act and/or their therapeutic and chemical characteristics. Each bottom-level ATC code stands for a pharmaceutically used substance in a single indication (or use). This means that one drug can have more than one code: acetylsalicylic acid (aspirin), for example, has A01AD05 as a drug for local oral treatment, B01AC06 as a platelet inhibitor, and N02BA01 as an analgesic and antipyretic. On the other hand, several different brands share the same code if they have the same active substance and indications.
In this system, drugs are classified into groups at 5 different levels:
The first level of the code indicates the anatomical main group and consists of one letter. There are 14 main groups:
2015 02 13 Siyaha DZ N01 Maatkas
How To Hard Reset An HTC Hero Android Smart Phone
Ferrari LaFerrari - GTA SA
阿土伯RADIO-N06萌系教主敏敏
2015 02 13 Siyaha DZ N01 Maatkas
How To Hard Reset An HTC Hero Android Smart Phone
Ferrari LaFerrari - GTA SA
阿土伯RADIO-N06萌系教主敏敏