atcvet code qj54 atcvet code qj54 atcvet code qj54 antimycobacterials 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. subgroup qj54 is part of the anatomical group qj antiinfectives for systemic use. atc codes j antiinfectives for systemic use j01 antibacterials for systemic use j02 antimycotics for systemic use j04 antimycobacterials j05 antivirals for systemic use human only j06 immune sera and immunoglobulins j07 vaccines atcvet only qj51 antibacterials for intramammary use qj54 antimycobacterials for intramammary use a b c d g h qi j l m n p r s v national issues of the atc classification may include additional codes not present in this list, which follows the who version. qj54a drugs for mycobacterial infections qj54ab antibiotics qj54ab02 rifampicin qj54ab03 rifamycin