The purpose of this study is to confirm the safety profile / factors which impact safety and efficacy in patients given triple therapy for Helicobacter pylori eradication with Nexium + amoxicillin (AMPC) + clarithromycin (CAM), or Nexium + AMPC + metronidazole (MNZ) in usual post-marketing use.
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Number of Adverse Drug Reactions
Timeframe: Period from the start of triple therapy to assessment of eradication, an expected average of 3 months