Drugs

Dose mg/kg

No. of writhes ± S.E.M

Inhibition %

Control

14.1 ± 0.29

0

T. chebula

300

8.4 ± 0.28

^*40.42

T. chebula

500

7.1 ± 0.24

^**49.6

T. chebula

1000

5.2 ± 0.2

^**63.1

Aspirin

300

9.1 ± 0.3

^**35.4

Aspirin

500

7.5 ± 0.5

^**46.8

Aspirin

1000

5.8 ± 0.4

^**58.8