title: Letter: Antacids and anticholinergics.
mesh_terms: D000863:Antacids / Q000494:pharmacology*; D001285:Atropine; D004336:Drug Antagonism; D004359:Drug Therapy, Combination; D006801:Humans; D006863:Hydrogen-Ion Concentration; D010276:Parasympatholytics / Q000037:antagonists & inhibitors* / Q000378:metabolism
chemical_list: D000863:Antacids; D010276:Parasympatholytics; D001285:Atropine