Treatment | Dose | No of writhing | % of writhing | % of writhing inhibition |
---|---|---|---|---|
Control (distilled water) | 10 ml/kg | 39.2 ± 1.3 | 100.0 | 0.0 |
Na diclofenac | 10 mg/kg | 13.4 ± 1.3* | 34.2 | 65.8 |
PPE | 100 mg/kg | 35.8 ± 4.2* | 91.3 | 8.7 |
PPE | 250 mg/kg | 24.0 ± 0.7* | 61.2 | 38.8 |
PPE | 500 mg/kg | 18.2 ± 1.7* | 46.4 | 53.6 |
PPE (500 mg/kg) + Naloxone (2 mg/kg) |  | 13.5 ± 0.4* | 34.4 | 65.6 |