Table 2: First-line regimens for H. Pylori Eradication [14].

Medications Duration Efficacy
Standard triple therapy PPI bid, clarithromycin 500 mg bid, amoxicillin 1000 mg bid 10-14 days 70-85%
For PCN allergic patients PPI bid, clarithromycin 500 mg bid, metronidazole 500 mg bid 10-14 days 70-85%
Quadruple therapy Bismuth subsalicylate 525 mg qid, metronidazole 250 mg qid,
tetracycline 500 mg qid, PPI bid or ranitidine 150 mg bid
10-14 days 75-90%