Placebo group:Normal saline was administered intravenously

A phase II, randomized, multicenter, dose-finding, positive control, placebo-controlled, double-blind, double-dummy clinical trial to evaluate the efficacy and safety of HRS5580 for injection in the prevention of postoperative nausea and vomiting

To evaluate the efficacy and safety of HR1405-01 injection in the treatment of pain after abdominal surgery in a multi-center, randomized, double-blind, positive drug and placebo parallel controlled phase ? clinical trial