For the treatment of bleeding peptic ulcers, the intravenous administration of a high-dose proton pump inhibitor after the initial endoscopic treatment has shown a decline in the frequency of recurrent bleeding as well as surgery. Recent studies reported that the use of oral proton pump inhibitor was effective under certain circumstances in the treatment of bleeding peptic ulcers. However, to date, no study has been conducted to compare the effect of a high-dose intravenous proton pump inhibitor with that of oral Rabeprazole after endoscopic treatment of bleeding peptic ulcers. Therefore, in this study, after administering a high-dose intravenous proton pump inhibitor or high-dose oral Rabeprazole in preventing recurrent bleeding following endoscopic treatment of bleeding peptic ulcers, we are going to compare the rate of recurrent bleeding between the two groups as well as to compare and evaluate the surgery rate, mortality rate and the number of days of hospital stay.