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  • Title: Pseudomembranous colitis following clarithromycin therapy.
    Author: Teare JP, Booth JC, Brown JL, Martin J, Thomas HC.
    Journal: Eur J Gastroenterol Hepatol; 1995 Mar; 7(3):275-7. PubMed ID: 7743311.
    Abstract:
    OBJECTIVE: To describe the association of clarithromycin, used to treat Helicobacter pylori infection and duodenal ulceration, with pseudomembranous colitis in two patients. SETTING: St Mary's Hospital, London, UK. PATIENTS: Two female patients aged 77 and 78 years, admitted with duodenal ulceration and H. pylori infection. INTERVENTION: Clarithromycin (500 mg three times daily) was administered concurrently with omeprazole (40 mg once daily). OUTCOME MEASURES: After an initial improvement in symptoms both patients experienced persistent Clostridium difficile-associated diarrhoea. CONCLUSIONS: High-dose clarithromycin should be used with caution for the treatment of H. pylori infection associated with gastroduodenal ulceration. The drug may induce antibiotic-associated colitis which can lead to morbidity and mortality, particularly in the elderly.
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