Figure 2
From: Efficacy of Helicobacter pylori eradication therapies: a single centre observational study

Suggested algorithm for eradication therapy in H. pylori infection. Regimens in parentheses are alternatives at each stage. *PPI+rifabutin+amoxicillin can be used when sensitivity testing is unavailable. **Isolates sensitive to both clarithromycin and metronidazole can be treated with RBC-C-T. Abbreviations used in the figure: A-amoxicillin, C-clarithromycin, T-tetracycline, N-nitroimidazole, M-metronidazole, PPI-proton pump inhibitor, RBC-ranitidine bismuth citrate.