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% |