From: Effects of ramosetron orally disintegrating tablets on the prophylaxis of post-discharge nausea and/or vomiting in female patients undergoing day surgery under general anesthesia: a randomized controlled trial
Control (n = 67)
Ramosetron (n = 67)
P value
Postoperative 0–0.5 h
 VNRS
26 (21)
23 (18)
0.565
 Fentanyl (μg)
9 (19)
6 (15)
0.335
Postoperative 0.5–3 h
15 (12)
14 (11)
0.497
 Ketorolac (mg)
11 (14)
10 (14)
0.789