title: Pseudomembranous colitis: multiple relapses after treatment with metronidazole.
mesh_terms: D000368:Aged; D002792:Cholestyramine Resin / Q000627:therapeutic use; D003967:Diarrhea / Q000209:etiology; D004761:Enterocolitis, Pseudomembranous / Q000150:complications / Q000188:drug therapy*; D005243:Feces / Q000382:microbiology; D005260:Female; D006801:Humans; D008795:Metronidazole / Q000627:therapeutic use*; D012008:Recurrence; D014640:Vancomycin / Q000627:therapeutic use*
chemical_list: D002792:Cholestyramine Resin; D008795:Metronidazole; D014640:Vancomycin