atc code a05 atc code a05 atc code a05 bile and liver therapy 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 a05 is part of the anatomical group a alimentary tract and metabolism. atc codes a alimentary tract and metabolism a01 stomatological preparations a02 drugs for acid related disorders a03 drugs for functional gastrointestinal disorders a04 antiemetics and antinauseants a05 bile and liver therapy a06 drugs for constipation a07 antidiarrheals, intestinal anti-inflammatory/anti-infective agents a08 antiobesity preparations, excluding diet products a09 digestives, including enzymes a10 drugs used in diabetes a11 vitamins a12 mineral supplements a13 tonics a14 anabolic agents for systemic use a15 appetite stimulants a16 other alimentary tract and metabolism 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, qa05. atcvet codes without corresponding human atc codes are cited with the leading q in the following list.national issues of the atc classification may include additional codes not present in this list, which follows the who version. a05a bile therapy a05aa bile acids and derivatives a05aa01 chenodeoxycholic acid a05aa02 ursodeoxycholic acid a05aa03 cholic acid a05aa04 obeticholic acid a05ab preparations for biliary tract therapy a05ab01 nicotinyl methylamide a05ax other drugs for bile therapy a05ax01 piprozolin a05ax02 hymecromone a05ax03 cyclobutyrol a05ax04 maralixibat chloride a05ax05 odevixibat qa05ax90 menbutone a05b liver therapy, lipotropics a05ba liver therapy a05ba01 arginine glutamate a05ba03 silymarin a05ba04 citiolone a05ba05 epomediol a05ba06 ornithine oxoglutarate a05ba07 tidiacic arginine a05ba08 glycyrrhizic acid (glycyrrhizin) a05ba09 metadoxine a05ba10 phospholipids qa05ba90 methionine a05c drugs for bile therapy and lipotropics in combination empty group