Nausea drug may ease unsedated endoscopy for bleeding patients

This study tests whether giving ondansetron (a common nausea medicine) before an unsedated emergency endoscopy can reduce discomfort and gagging in people with upper gastrointestinal bleeding. About 80 participants will receive either ondansetron or a placebo, and doctors will rate patient cooperation, gagging intensity, and how clear the view is during the procedure. The goal is to see if this simple addition can make the exam easier for patients and improve outcomes.