(n=120) Group 1 Group 2 Group 3 Group 4
No. % No. % No. % No. %
Sedation
Intraoperative
Postoperative

0
0

0
0

5**
2

16.65
6.67

11
5*

36.63
16.65

15**
8*

50
26.67
Bradycardia 1 3.33 2 6.67 2 6.67 5 16
Hypotension 1 3.33 1 3.33 2 6.67 4 13.3
Dry mouth 0 0 1 3.33 2 6.67 2 6.67
Respiratory depression 0 0 0 0 0 0 0 0
Table 5: Incidence of Side Effects No: reflects number of patients with side effects, **P <0.001; *P <0.05.