Regimen | Drugs (doses) | Dosing frequency | Duration (days) | FDA approval |
Bismuth quadruple | PPI (standard dose¶) | Twice daily | 10 to 14◊ | No§ |
Bismuth subcitrate (120 to 300 mg [not available in US] or 420 mg [available in North America and elsewhere as part of Pylera combination pill])[1] or Bismuth subsalicylate (300 or 524 mg)[1] | Four times daily | |||
Tetracycline (500 mg) | Four times daily | |||
Metronidazole (250 to 500 mg) | Four times daily (250 mg) | |||
Three to four times daily (500 mg) | ||||
Clarithromycin triple* | PPI (standard¶ or double the standard dose) | Twice daily | 14 | YesΔ |
Clarithromycin (500 mg) | Twice daily | |||
Amoxicillin (1 gram) or Metronidazole (500 mg) | Twice daily (amoxicillin) Three times daily (metronidazole) | |||
Clarithromycin-based concomitant* | PPI (standard dose¶) | Twice daily | 10 to 14 | No |
Clarithromycin (500 mg) | Twice daily | |||
Amoxicillin (1 gram) | Twice daily | |||
Metronidazole or tinidazole (500 mg) | Twice daily | |||
Clarithromycin-based sequential¥* | PPI (standard dose¶) plus amoxicillin (1 gram) for 5 days followed by: | Twice daily | 10 (total) | No |
PPI, clarithromycin (500 mg) plus either metronidazole or tinidazole (500 mg) for an additional 5 days | Twice daily | |||
Clarithromycin-based hybrid‡* | PPI (standard dose¶) plus amoxicillin (1 gram) for 7 days followed by: | Twice daily | 14 (total) | No |
PPI, amoxicillin, clarithromycin (500 mg), plus either metronidazole or tinidazole (500 mg) for an additional 7 days | Twice daily |
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