170
Participants
Start Date
March 31, 2016
Primary Completion Date
February 28, 2018
Study Completion Date
February 28, 2018
fentanyl
arm A receiving iv fentanyl
pethidine
arm B receiving iv pethidine
Diazepam
arm B receiving iv diazepam
Midazolam
arm A receiving iv midazolam
The University of Hong Kong
OTHER
Queen Mary Hospital, Hong Kong
OTHER
Kwong Wah Hospital
OTHER