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  • Title: Sucralfate affects the susceptibility of Helicobacter pylori to antimicrobial agents.
    Author: Slomiany BL, Piotrowski J, Majka J, Slomiany A.
    Journal: Scand J Gastroenterol Suppl; 1995; 210():82-4. PubMed ID: 8578215.
    Abstract:
    BACKGROUND: Infection with Helicobacter pylori is regarded as a primary factor in the pathogenesis of gastric disease, and successful therapies now include a combination of antiulcer drugs with antimicrobial agents. In this study, we investigated the effect of sucralfate and omeprazole on the vitro anti-H. pylori activity of metronidazole, erythromycin, tetracycline, and amoxycillin. METHODS: Aliquots of H. pylori culture were transferred to the wells containing different concentrations of antibiotics either alone or in the presence of various doses of sucralfate and omeprazole and incubated for 3 days for MIC evaluation. RESULTS: The assays in the absence of sucralfate and omeprazole gave MIC value 0.10 mg/l for erythromycin, 0.12 mg/l for amoxycillin, 0.15 mg/l for tetracycline, and 14 mg/l for metronidazole. Inclusion of sucralfate evoked a 28% enhancement in the MIC of metronidazole, 2.5-fold in tetracycline, 8-fold in erythromycin, and 2-fold in amoxycillin. In the presence of omeprazole, the MIC of erythromycin improved 4-fold, tetracycline 1.6-fold, and amoxycillin, 2-fold. CONCLUSIONS: The results demonstrate that sucralfate enhances the anti-H. pylori activity of antibiotics and that this effect is comparable to that of omeprazole.
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