consisting of proton pump inhibitors such as omeprazole, lansoprazole
and the antibiotics clarithromycin
and amoxicillin.[46] Variations of the triple therapy have been developed over the years, such as using a different proton pump inhibitor, as with pantoprazole or rabeprazole, or replacing amoxicillin with metronidazole for people who are allergic to penicillin.