Efficacy and Safety Study of Esomeprazole vs Omeprazole to Treat Acute Non-Variceal Upper Gastrointestinal Bleeding

Inclusion Criteria: * Male or female aged 18-65 years. * GI bleeding or with such signs within 48 hours as judged by the investigator as to have non-variceal upper GI bleeding. * One endoscopically confirmed bleeding peptic ulcer or erosive gastritis Exclusion Criteria: * GI bleeding caused by Esophageal varices * Mallory Weiss syndrome * Zollinger-Ellison syndrome * Suspicion of gastric malignancy at baseline endoscopy * Post-Billroth-resection * Unknown source of GI bleeding · 2.Unstable vital signs