From: Effect of different low doses of intrathecal morphine (0.1 and 0.2 mg) on pain and vital functions in patients undergoing total hip arthroplasty: a randomised controlled study
PONV prophylaxis N (%):
Control
ITM 0.1
ITM 0.2
Yes
12 (35.3%)
12 (42.9%)
10 (32.3%)
No
22 (64.7%)
16 (57.1%)
21 (67.7%)