Drug/extract | Dose (mg/kg bwt) | Mean no. of writhes recorded (±SEM) | P-value | Percentage protection |
Total crude extract | 5.0 | 20.5 ± 9.8 | 0.0061* | −3.8 |
| 40.0 | 22.0 ± 3.0 | 0.0014* | −11.4 |
| 150.0 | 18.0 ± 1.5 | 0.0008* | 8.9 |
| 600.0 | 17.8 ± 2.3 | 0.0012* | 10.4 |
| 1000.0 | 4.3 ± 2.3 | 0.085 | 78.5 |
Diclofenac Na | 10.0 | 0.25 ± 0.38 | 0.0083** | 98.7 |
Normal saline | 1.0ml | 19.8 ± 4.3 | 0.0083* | 0.0 |