| ATC code R:Respiratory system |
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| Other ATC codes |
ATC code RRespiratory system is a section of theAnatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by theWorld Health Organization (WHO) for the classification ofdrugs and other medical products.[1][2][3][4]
Codes forveterinary use (ATCvet codes) can be created by placing the letter Q in front of the human ATC code: for example,QR.[5]
National versions of the ATC classification may include additional codes not present in this list, which follows the WHO version.
