Table 3: Recommended regimens for Helicobacter pylori eradication in adults (BNF, 2012).
| Antibacterial |
| Acid suppressant | Amoxicillin | Clarithromycin | Metronidazole |
| Esomeprazole 20 mg twice daily | 1 g twice daily | 500 mg twice daily | — |
| — | 250 mg twice daily | 400 mg twice daily |
| Lansoprazole 30 mg twice daily | 1 g twice daily | 500 mg twice daily | — |
| 1 g twice daily | — | 400 mg twice daily |
| — | 250 mg twice daily | 400 mg twice daily |
| Omeprazole 20 mg twice daily OR Ranitidine 150 mg twice daily | 1 g twice daily | 500 mg twice daily | — |
| 500 mg 3 times daily | — | 400 mg 3 times daily |
| — | 250 mg twice daily | 400 mg twice daily |
| Pantoprazole 40 mg twice daily | 1 g twice daily | 500 mg twice daily | — |
| — | 250 mg twice daily | 400 mg twice daily |
| Rabeprazole 20 mg twice daily | 1 g twice daily | 500 mg twice daily | — |
| — | 250 mg twice daily | 400 mg twice daily |