520
Participants
Start Date
March 31, 2016
Primary Completion Date
August 31, 2018
Study Completion Date
December 31, 2018
Docozine
dezocine(Dez A:0.05 mg/kg,Dez B:0.1 mg/kg and Dez C:0.15 mg/kg, diluted to 5 ml respectively) is given for 10 seconds after surface anesthesia
Saline
The same amount of saline is given for 10 seconds after surface anesthesia
Second Affiliated Hospital of Anhui Medical University, Hefei
Anqing Municipal Hospital, Anqing
Chaohu Affiliated Hospital of Anhui Medical University, Chaohu
The second People's Hospital of Wuhu, Wuhu
The First Affiliated Hospital of Anhui Medical University
OTHER