atc code a02 atc code a02 atc code a02 drugs for acid related 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 a02 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, qa02. national issues of the atc classification may include additional codes not present in this list, which follows the who version. a02a antacids a02aa magnesium compounds a02aa01 magnesium carbonate a02aa02 magnesium oxide a02aa03 magnesium peroxide a02aa04 magnesium hydroxide a02aa05 magnesium silicate a02aa10 combinations a02ab aluminium compounds a02ab01 aluminium hydroxide a02ab02 algeldrate a02ab03 aluminium phosphate a02ab04 dihydroxialumini sodium carbonate a02ab05 aluminium acetoacetate a02ab06 aloglutamol a02ab07 aluminium glycinate a02ab10 combinations a02ac calcium compounds a02ac01 calcium carbonate a02ac02 calcium silicate a02ac10 combinations a02ad combinations and complexes of aluminium, calcium and magnesium compounds a02ad01 ordinary salt combinations a02ad02 magaldrate a02ad03 almagate a02ad04 hydrotalcite a02ad05 almasilate a02af antacids with antiflatulents a02af01 magaldrate and antiflatulents a02af02 ordinary salt combinations and antiflatulents a02b drugs for peptic ulcer and gastro-oesophageal reflux disease (gord) a02ba h2-receptor antagonists a02ba01 cimetidine a02ba02 ranitidine a02ba03 famotidine a02ba04 nizatidine a02ba05 niperotidine a02ba06 roxatidine a02ba07 ranitidine bismuth citrate a02ba08 lafutidine a02ba51 cimetidine, combinations a02ba53 famotidine, combinations a02bb prostaglandins a02bb01 misoprostol a02bb02 enprostil a02bc proton pump inhibitors a02bc01 omeprazole a02bc02 pantoprazole a02bc03 lansoprazole a02bc04 rabeprazole a02bc05 esomeprazole a02bc06 dexlansoprazole a02bc07 dexrabeprazole a02bc08 vonoprazan a02bc09 tegoprazan a02bc53 lansoprazole, combinations a02bc54 rabeprazole, combinations a02bd combinations for eradication of helicobacter pylori a02bd01 omeprazole, amoxicillin and metronidazole a02bd02 lansoprazole, tetracycline and metronidazole a02bd03 lansoprazole, amoxicillin and metronidazole a02bd04 pantoprazole, amoxicillin and clarithromycin a02bd05 omeprazole, amoxicillin and clarithromycin a02bd06 esomeprazole, amoxicillin and clarithromycin a02bd07 lansoprazole, amoxicillin and clarithromycin a02bd08 bismuth subcitrate, tetracycline and metronidazole a02bd09 lansoprazole, clarithromycin and tinidazole a02bd10 lansoprazole, amoxicillin and levofloxacin a02bd11 pantoprazole, amoxicillin, clarithromycin and metronidazole a02bd12 rabeprazole, amoxicillin and clarithromycin a02bd13 rabeprazole, amoxicillin and metronidazole a02bd14 vonoprazan, amoxicillin and clarithromycin a02bd15 vonoprazan, amoxicillin and metronidazole a02bd16 omeprazole, amoxicillin and rifabutin a02bx other drugs for peptic ulcer and gastro-oesophageal reflux disease (gord) a02bx01 carbenoxolone a02bx02 sucralfate a02bx03 pirenzepine a02bx04 methiosulfonium chloride a02bx05 bismuth subcitrate a02bx06 proglumide a02bx07 gefarnate a02bx08 sulglicotide a02bx09 acetoxolone a02bx10 zolimidine a02bx11 troxipide a02bx12 bismuth subnitrate a02bx13 alginic acid a02bx14 rebamipide a02bx15 teprenone a02bx51 carbenoxolone, combinations excluding psycholeptics a02bx71 carbenoxolone, combinations with psycholeptics a02bx77 gefarnate, combinations with psycholeptics a02x other drugs for acid related disorders empty