title: Cimetidine for prevention of acute gastrointestinal bleeding.
mesh_terms: D000208:Acute Disease; D000863:Antacids / Q000494:pharmacology; D002927:Cimetidine / Q000494:pharmacology / Q000627:therapeutic use*; D005188:False Negative Reactions; D005189:False Positive Reactions; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis / Q000188:drug therapy*; D006146:Guanidines / Q000627:therapeutic use*; D006801:Humans; D009780:Occult Blood
chemical_list: D000863:Antacids; D006146:Guanidines; D002927:Cimetidine