atc code r02 atc code r02 atc code r02 throat preparations is a therapeutic subgroup of the anatomical therapeutic chemical classification system, a system of alphanumeric codes developed by the world health organization (who) for the classification of drugs and other medical products. subgroup r02 is part of the anatomical group r respiratory system. atc codes r respiratory system r01 nasal preparations r02 throat preparations r03 drugs for obstructive airway diseases r05 cough and cold preparations r06 antihistamines for systemic use r07 other respiratory system products a b c d g h qi j l m n p r s v codes for veterinary use (atcvet codes) can be created by placing the letter q in front of the human atc code: for example, qr02. national issues of the atc classification may include additional codes not present in this list, which follows the who version. r02a throat preparations r02aa antiseptics r02aa01 ambazone r02aa02 dequalinium r02aa03 dichlorobenzyl alcohol r02aa05 chlorhexidine r02aa06 cetylpyridinium r02aa09 benzethonium r02aa10 myristyl-benzalkonium r02aa11 chlorquinaldol r02aa12 hexylresorcinol r02aa13 acriflavinium chloride r02aa14 oxyquinoline r02aa15 povidone-iodine r02aa16 benzalkonium r02aa17 cetrimonium r02aa18 hexamidine r02aa19 phenol r02aa20 various r02aa21 octenidine r02ab antibiotics r02ab01 neomycin r02ab02 tyrothricin r02ab03 fusafungine r02ab04 bacitracin r02ab30 gramicidin r02ad anesthetics, local r02ad01 benzocaine r02ad02 lidocaine r02ad03 cocaine r02ad04 dyclonine r02ad05 ambroxol r02ax other throat preparations r02ax01 flurbiprofen r02ax02 ibuprofen r02ax03 benzydamine