ATC code P Antiparasitic products, insecticides and repellents is a section of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the WHO for the classification of drugs and other medical products.
Codes for veterinary use (ATCvet codes) can be created by placing the letter Q in front of the human ATC code: for example, QA.
National issues of the ATC classification may include additional codes not present in this list, which follows the World Health Organization version.