This is a multi-center, parallel-group, single blind study using Remimazolam or propofol for sedation in patients undergoing colonoscopy.Subjects are randomized to different treatment groups (including 1 for Remimazolam Tosilate and 1 for propofol). Fentanyl are permitted before colonoscopy. Efficacy and safety profiles of Remimazolam Tosilate are to be evaluated.
The purpose of this study is to evaluate the safety and efficacy of the sedation for Remimazolam or Propofol in patients undergoing colonoscopy.