Treatment regimen	Duration	Eradication rate (%)	Cost (generic) per day*
Omeprazole (Prilosec), 20 mg twice daily, plus amoxicillin, 1 g twice daily, plus clarithromycin (Biaxin), 500 mg twice daily	14 days	80 to 86	Omeprazole: $9 (8)
			Amoxicillin: $2 (2 to 3)
			Clarithromycin: $10 (9)
Lansoprazole (Prevacid), 30 mg twice daily, plus amoxicillin, 1 g twice daily, plus clarithromycin, 500 mg twice daily	10 to 14 days	86	Lansoprazole: $10
			Amoxicillin: $2 (2 to 3)
			Clarithromycin: $10 (9)
Bismuth subsalicylate (Pepto-Bismol), 525 mg four times daily, plus metronidazole (Flagyl), 250 mg four times daily, plus tetracycline, 500 mg four times daily, plus histamine H2 blocker	14 days (H2 blocker alone for an additional 14 days taken once or twice daily)	80	Bismuth subsalicylate: $1
			Metronidazole: $10 (2)
			Tetracycline: $2 (1)