Treatments

Dose (mg/kg)

Normal saline

ASA

BPA

BPE

10 mL/kg

150

200

400

800

200

400

800

Mean writhes count ± SEM 30 mins after pretreatment

36.20 ± 5.02

0.60 ± 0.60*

1.60 ± 0.51*

0.60 ± 0.40*

0.20 ± 0.20*

2.20 ± 0.86*

1.20 ± 0.80*

0.60 ± 0.60*

% Inhibition of pain (Antinociceptive effect)

-

98.3

95.6

98.3

99.5

93.6

96.5

98.3