Table 3.

Common treatment regimens for Helicobacter pylori.

Regimen	Comment
Triple therapy PPI; amoxicillin 1 g BID; clarithromycin  500 mg BID for 10–14 days	First line treatment
Sequential therapy PPI and amoxicillin 1 g BID for 5 days followed by PPI,  clarithromycin 500 mg BID, tinidazole 500 mg BID for 5 days	May be first line where macrolide resistance is common
Quadruple therapy PPI; bismuth 525 mg QID; metronidazole 500 mg QID;  and tetracycline 500 mg QID for 14 days	Treatment for failure

PPI, proton-pump inhibitor; BD, twice daily; QID, four times a day.