Table 4. Incidence Rate of Adverse Effects.
| Side effects | Group A (n = 30) |
Group B (n = 30) |
P value |
|---|---|---|---|
| Hypotension | 0 (0.0) | 0 (0.0) | 1.000 |
| Dizziness | 12 (40.0) | 7 (23.3) | 0.267 |
| Pruritus | 1 (3.3) | 0 (0.0) | 1.000 |
| Sweating | 1 (3.3) | 2 (6.7) | 1.000 |
| Urticaria | 0 (0.0) | 0 (0.0) | 1.000 |
Values are number of patients (%). Group A received intravenous patient controlled analgesia (IV-PCA) using a combination of morphine 60 mg and ketorolac 180 mg (basal rate 1 ml/h, a bolus of 1 ml, and lockout time 15 min). Group B received IV-PCA using nefopam 200 mg (basal rate 1 ml/h, a bolus of 1 ml, and lockout time 15 min).