highly significantP < 0.0001
Subrahmanyam, who found that the recovery time in Group B was 5.86 ± 1.3 min and in Group F was 3.33 ± 0.8 min, which was statistically highly significant ( P < 0.0001).[ 20 ] In our study, although sedation scores were higher in butorphanol group as compared to fentanyl group, the majority of the patients of butorphanol group were responding to verbal commands at 1⁄2 h postoperatively.