atc code a03 atc code a03 atc code a03 drugs for functional gastrointestinal disorders 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 a03 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, qa03. 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. a03a drugs for functional gastrointestinal disorders a03aa synthetic anticholinergics, esters with tertiary amino group a03aa01 oxyphencyclimine a03aa03 camylofin a03aa04 mebeverine a03aa05 trimebutine a03aa06 rociverine a03aa07 dicycloverine a03aa08 dihexyverine a03aa09 difemerine a03aa30 piperidolate a03ab synthetic anticholinergics, quaternary ammonium compounds a03ab01 benzilone a03ab02 glycopyrronium bromide a03ab03 oxyphenonium a03ab04 penthienate a03ab05 propantheline a03ab06 otilonium bromide a03ab07 methantheline a03ab08 tridihexethyl a03ab09 isopropamide a03ab10 hexocyclium a03ab11 poldine a03ab12 mepenzolate a03ab13 bevonium a03ab14 pipenzolate a03ab15 diphemanil a03ab16 (2-benzhydryloxyethyl)diethyl-methylammonium iodide a03ab17 tiemonium iodide a03ab18 prifinium bromide a03ab19 timepidium bromide a03ab21 fenpiverinium a03ab53 oxyphenonium, combinations qa03ab90 benzetimide qa03ab92 carbachol qa03ab93 neostigmin a03ac synthetic antispasmodics, amides with tertiary amines a03ac02 dimethylaminopropionylphenothiazine a03ac04 nicofetamide a03ac05 tiropramide a03ad papaverine and derivatives a03ad01 papaverine a03ad02 drotaverine a03ad30 moxaverine a03ae serotonin receptor antagonists a03ae01 alosetron a03ae03 cilansetron a03ax other drugs for functional gastrointestinal disorders a03ax01 fenpiprane a03ax02 diisopromine a03ax03 chlorbenzoxamine a03ax04 pinaverium a03ax05 fenoverine a03ax06 idanpramine a03ax07 proxazole a03ax08 alverine a03ax09 trepibutone a03ax10 isometheptene a03ax11 caroverine a03ax12 phloroglucinol a03ax13 silicones a03ax14 valethamate a03ax15 menthae piperitae aetheroleum a03ax30 trimethyldiphenylpropylamine a03ax58 alverine, combinations qa03ax63 silicones, combinations qa03ax90 physiostigmin qa03ax91 macrogol ricinoleat (nfn) a03b belladonna and derivatives, plain a03ba belladonna alkaloids, tertiary amines a03ba01 atropine a03ba03 hyoscyamine a03ba04 belladonna total alkaloids a03bb belladonna alkaloids, semisynthetic, quaternary ammonium compounds a03bb01 butylscopolamine a03bb02 methylatropine a03bb03 methylscopolamine a03bb04 fentonium a03bb05 cimetropium bromide a03bb06 homatropine methylbromide a03c antispasmodics in combination with psycholeptics a03ca synthetic anticholinergic agents in combination with psycholeptics a03ca01 isopropamide and psycholeptics a03ca02 clidinium and psycholeptics a03ca03 oxyphencyclimine and psycholeptics a03ca04 otilonium bromide and psycholeptics a03ca05 glycopyrronium and psycholeptics a03ca06 bevonium and psycholeptics a03ca07 ambutonium and psycholeptics a03ca08 diphemanil and psycholeptics a03ca09 pipenzolate and psycholeptics a03ca30 emepronium and psycholeptics a03ca34 propantheline and psycholeptics a03cb belladonna and derivatives in combination with psycholeptics a03cb01 methylscopolamine and psycholeptics a03cb02 belladonna total alkaloids and psycholeptics a03cb03 atropine and psycholeptics a03cb04 homatropine methylbromide and psycholeptics a03cb31 hyoscyamine and psycholeptics a03d antispasmodics in combination with analgesics a03da synthetic anticholinergic agents in combination with analgesics a03da01 tropenzilone and analgesics a03da02 pitofenone and analgesics a03da03 bevonium and analgesics a03da04 ciclonium and analgesics a03da05 camylofin and analgesics a03da06 trospium and analgesics a03da07 tiemonium iodide and analgesics a03db belladonna and derivatives in combination with analgesics a03db04 butylscopolamine and analgesics a03e antispasmodics and anticholinergics in combination with other drugs a03f propulsives a03fa propulsives a03fa01 metoclopramide a03fa02 cisapride a03fa03 domperidone a03fa04 bromopride a03fa05 alizapride a03fa06 clebopride a03fa07 itopride a03fa08 cinitapride a03fa09 mosapride a03fa10 acotiamide qa03fa90 physiostigmine