Upper GI Bleeding

The goal of this clinical trial is to learn if the HemoPill acute (trial device) can detect the presence of blood in participants suspected of having upper gastrointestinal bleeding. The main question it aims to answer is: -What is the clinical relationship between the HemoPill acute (trial device) and endoscopy (control procedure) in detecting the presence of blood/bleeding in the upper gastrointestinal tract? Participants will: * Swallow the HemoPill acute device one (1) to four (4) hours before their scheduled standard of care endoscopy procedure. * Keep the device receiver close to their body from the time of swallowing until completion of their endoscopy procedure. * Return for a follow-up visit(s) to check for the presence or absence of the HemoPill acute device and to report the occurrence of any adverse or serious adverse events.

Vonoprazan (VPZ), an oral potassium-competitive acid blocker (P-CAB) has emerged as an alternative potent acid-suppressant.It has a faster onset of action in 1 day (3-5 days in PPI), and is more stable in acidic condition than PPI. While many studies compared Vonoprazan against PPI in the treatment of reflux oesophagitis, H. Pylori eradication, and gastric ulcers; thus far, there is a paucity of data on use of Vonoprazan on bleeding peptic ulcers. We perform a multicenter randomized controlled trial (RCT) to compare the efficacy of oral Vonoprazan against standard high dose PPI therapy in bleeding peptic ulcers that had received successful endoscopic haemostasis We hypothesize that in patients with bleeding peptic ulcers, the use of acid pump inhibitors Vonoprazan would not be inferior to standard treatment of a bolus plus high dose PPI intravenous infusion at preventing recurrent bleeding after endoscopic haemostasis.