False-positive "Hemoccult" reaction with cimetidine.
D002927:Cimetidine / Q000494:pharmacology*; D005189:False Positive Reactions; D005750:Gastric Juice / Q000187:drug effects*; D006146:Guanidines / Q000494:pharmacology*; D006801:Humans; D009780:Occult Blood
D006146:Guanidines; D002927:Cimetidine