80
Participants
Start Date
August 30, 2021
Primary Completion Date
January 21, 2022
Study Completion Date
April 18, 2022
Dinalbuphine sebacate
Naldebain dissolved in benzyl benzoate and sesame oil (a total volume of 2ml) will be prepared in a 5-ml syringe 30 min before administration. Intramuscular injection into the gluteal muscles will be performed by an anesthesiologist under sonography-guidance.
Placebo solution
Benzyl benzoate and sesame oil served as placebo solution (a total volume of 2ml) will be prepared in a 5-ml syringe 30 min before administration. Intramuscular injection into the gluteal muscles will be performed by an anesthesiologist under sonography-guidance.
E-Da Hospital, Yanchao
E-DA Hospital
OTHER