Effects of lansoprazole plus amoxycillin on the cure of Helicobacter pylori infection in Japanese peptic ulcer patients

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Abstract
Aim: The effect of lansoprazole plus amoxycillin on curing Helicobacter pylori infection and peptic ulcer recurrence was evaluated. Method: The study group was composed of 68 patients with gastric ulcers and 51 with duodenal ulcers, all were H. pylori‐positive. The participants were assigned at random to the lansoprazole alone group (lansoprazole 30 mg o.m. for 6 or 8 weeks) or the lansoprazole plus amoxycillin group (lansoprazole alone regimen plus amoxycillin at 500 mg q.d.s. concomitantly for the first 2 weeks). Healed patients were not given maintenance treatment with acid secretion inhibitors. The cure rate for H. pylori infection and the ulcer recurrence rate after 1 year were investigated. Result: The cure rate for H. pylori infection was 4.2% in patients receiving lansoprazole alone and 38.5% in patients receiving lansoprazole plus amoxycillin (P< 0.01) for gastric ulcers, and 0% in patients receiving lansoprazole alone and 61.9% in patients receiving lansoprazole plus amoxycillin (PPH. pylori infection had a recurrence. Conclusion: Concomitant use of lansoprazole and amoxycillin increased the curative effects on H. pylori infection. However, the cure rates with this regimen remained inadequate.

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