title: Agitation, disorientation, and hallucinations in patients on cimetidine: a report of three cases and literature review.
abstract: Cimetidine, the first of a new class of pharmacologic agents that dramatically inhibit basal gastric acid secretion, is achieving widespread use for the treatment of such acid peptic disorders as duodenal ulcers, gastritis, and reflux esophagitis. Three patients are presented who experienced agitation, disorientation, and hallucinations while being treated with cimetidine. A review of the literature revealed that central nervous system side effects of cimetidine can occur within 24 hours of treatment with the drug; are often unrecognized or misdiagnosed by clinicians, and are reversed within 12 to 48 hours after the discontinuation of the medication.
mesh_terms: D000328:Adult; D000368:Aged; D017109:Akathisia, Drug-Induced; D002927:Cimetidine / Q000009:adverse effects*; D006146:Guanidines / Q000009:adverse effects*; D006212:Hallucinations / Q000139:chemically induced*; D006801:Humans; D008297:Male; D009949:Orientation / Q000187:drug effects*; D011605:Psychoses, Substance-Induced / Q000209:etiology
chemical_list: D006146:Guanidines; D002927:Cimetidine