Effectiveness of Omeprazole‐Amoxicillin‐Clarithromycin (OAC) Therapy for Helicobacter pylori Infection in a Japanese Population

Background. Omeprazole or lansoprazole, amoxicillin, clarithromycin (PPI/AC) therapy has been reported to provide a high cure rate of H. pylori infection with few adverse effects. Effectiveness of H. pylori therapy may vary among different geographic regions and patient populations. However, there are few reports in Japan as to its effectiveness. We have, therefore, studied the effectiveness of H. pylori therapy in a large group of Japanese patients.

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