Amoxicillin/metronidazole/omeprazole/clarithromycin: a new, short quadruple therapy for Helicobacter pylori eradication
Abstract
Triple therapy regimens including two antibiotics plus acid suppression have become the new standard therapy in Helicobacter pylori eradication because of success rates of about 90%. However, these regimens are still costly, duration is about one week or less, and side-effects are not negligible. We therefore evaluated a new quadruple therapy, because theoretically a shorter duration of treatment may result in reduced costs, fewer side-effects, and possibly in a lower potential for antibiotic resistances. Controlled, prospective pilot study including H. pylori-positive patients with gastric or duodenal ulcers or erosive gastritis, treated after failure of dual therapy (proton-pump-inhibitors or ranitidine plus amoxicillin) or for the first time. They were assigned to a one week triple standard therapy, consisting of metronidazole 400 mg bid + omeprazole 20 mg bid + clarithromycin 250 mg bid, or a newly created quadruple-regimen, which adds amoxicillin (1 g bid) to the above triple regimen. Each of the four drugs was given for 5 days. H. pylori status was checked by 13C urea breath test before and after four weeks of therapy. A total of 71 patients were treated by quadruple therapy, and 42 patients were treated by triple therapy...Continue Reading
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A new quadruple therapy for Helicobacter pylori: influence of resistant strains on treatment outcome
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