Optimal First-Line Treatment for Helicobacter pylori Infection: Recent Strategies

Figure 1

The recent treatment strategy and administration method for nonbismuth quadruple therapy. Dose of each drug: proton pump inhibitor (PPI) standard dose twice a day, amoxicillin 1.0 g twice a day, clarithromycin 500 mg twice a day, and metronidazole 500 mg twice a day.