Table 1. The effect of thiopental sodium on claw pain threshold in intact and adrenalectomized rats.

Groups	Pain threshold (g)		P*	Algesia (%)	Analgesia (%)
	Before drugs	After drugs
TS (n=10)	26.1 ± 1.2	19 ± 1.2	<0.05	27.2
ATS (n=10)	24.3 ± 1.4	39.8 ± 2.2	<0.01	-	39
ADR (n=10)	24.8 ± 4.9	39.1 ± 2.2	<0.01	-	36.6
A-TS (n=10)	18.3 ± 2.5	16.8 ± 2.6	>0.05	20.1	-
A-ATS (n=10)	19.5 ± 0.9	34.2 ± 1.3	<0.01	-	43
A-ADR (n=10)	16.3 ± 2.4	28 ± 2.5	<0.01	-	41.8

The paired t-test test was performed. TS, intact groups receiving 15 mg/kg thiopental sodium, ATS, intact groups receiving 0.3 mg/kg adrenaline + 15 mg/kg thiopental sodium, ADR, intact groups receiving 0.3 mg/kg Adrenaline; A-TS, adrenalectomized groups receiving 15 mg/kg thiopental sodium, A-ATS, adrenalectomized groups receiving 0.3 mg/kg Adrenaline + 15 mg/kg thiopental sodium, A-ADR, adrenalectomized groups receiving 0.3 mg/kg adrenaline; n, number of animals. * P ≤ 0.05 was significant.