ATCvet code QJ51 Antibacterials for intramammary use is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System for veterinary medicinal products, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products for veterinary use.[1][2] Subgroup QJ51 is part of the anatomical group QJ Antiinfectives for systemic use.[3]
National issues of the ATC classification may include additional codes not present in this list, which follows the WHO version.