Introduction: Proton pump inhibitor (PPI) is the drug of choice used in patients with non-variceal upper gastrointestinal tract bleeding (UGIB). Intravenous (IV) PPI is more commonly used than oral form when overt bleeding occurs. Previous study has revealed that oral rabeprazole and IV omeprazole achieved similar intragastric pH elevation. It's probable that oral form and IV PPI provide equal efficacy in treating mild to moderate UGIB patients.

Aim: This study aims to compare the effect of three-day oral rabeprazole and iv omeprazole on bleeding control in patients with mild to moderate non-variceal UGIB.

Patients and methods: All patients presented with black to tarry stool passage or hematemesis and visited our ER will be evaluated to recruit into this study. They will receive regular vital sign monitoring, laboratory study and nasogastric tube insertion with gastric fluid aspiration. Esophagogastroendoscopy and hemostatic procedure if need will be performed within 12 hours. Those confirmed to have non-variceal UGIB, stable vital signs and agree to participate into this study will be randomized into two groups receiving either oral rabeprazole (20mg bid) or iv omeprazole (40mg qd) for three days. The presence of recurrent bleeding within three days, in-hospital complication and duration of hospital stay will be recorded and analyzed.

Expected results: At the end of this study, we will be able to determine whether patients treated with oral rabeprazole and iv omeprazole have similar re-bleeding or complication rates and hospitalization days.

Proton pump inhibitor (PPI) is the drug of choice used in patients with non-variceal upper gastrointestinal tract bleeding (UGIB). Intravenous (IV) PPI is more commonly used than oral form when overt bleeding occurs. Previous study has revealed that oral rabeprazole and IV omeprazole achieved similar intragastric pH elevation. It's probable that oral form and IV PPI provide equal efficacy in treating mild to moderate UGIB patients.

This study aims to compare the effect of three-day oral rabeprazole and iv omeprazole on bleeding control in patients with mild to moderate non-variceal UGIB. The expected numbers of intravenous and oral PPI were 100 respectively.

All patients presented with black to tarry stool passage or hematemesis and visited our ER will be evaluated to recruit into this study. They will receive regular vital sign monitoring, laboratory study and nasogastric tube insertion with gastric fluid aspiration. Esophagogastroendoscopy and hemostatic procedure if need will be performed within 12 hours. Those confirmed to have non-variceal UGIB, stable vital signs and agree to participate into this study will be randomized into two groups receiving either oral rabeprazole (20mg bid) or iv omeprazole (40mg qd) for three days. The presence of recurrent bleeding within three days, in-hospital complication and duration of hospital stay will be recorded and analyzed.

At the end of this study, we will be able to determine whether patients treated with oral rabeprazole and iv pantoprazole have similar re-bleeding or complication rates and hospitalization days.

Inclusion Criteria:

• moderate to mild upper gastrointestinal peptic ulcer bleeding

Exclusion Criteria:

• shock
• liver cirrhosis
• uremia
• severe UGI bleeding