Final answer:
The typical duration for treating H. pylori infection with a PPI as part of a triple therapy regimen ranges from 10 to 14 days, based on the specific combination of medications used.
Step-by-step explanation:
When treating H. pylori infection, proton pump inhibitors (PPI) are used in combination with antibiotics to create an environment in the stomach that is less acidic, which helps the antibiotics work more effectively. According to the US Food and Drug Administration, treatment regimens can include 10 days of omeprazole, amoxicillin, and clarithromycin (OAC), or 14 days with bismuth subsalicylate, metronidazole, and tetracycline (BMT), or alternatively, 10 or 14 days of treatment with lansoprazole, amoxicillin, and clarithromycin (LAC). The duration, therefore, typically ranges from 10 to 14 days depending on the specific medication protocol used.