Table 1.

Protective efeect of Pinus roxburghii Sarg. on paw edema induced by carrageenan in rat.

		Change in paw volume (mL) Mean ± SEM
Groups	Drug (dose), route	Time (hr)
		1 hr	2 hr	3 hr	4 hr
Control	Tween 80 (5%) p.o	0.71 ± 0.12	0.93 ± 0.01	1.8 ± 0.03	1.9 ± 0.02
Standard	Indomethacin (10 mg/kg), p.o	0.21 ± 0.06 (70.4)	0.23 ± 0.02** (75.26)	0.41 ± 0.01** (77.22)	0.35 ± 0.09 (81.56)
AB	100 mg/kg, p.o	0.61 ± 0.17 (14.08)	0.92 ± 0.17 (1.07)	0.89 ± 0.13** (50.55)	1.07 ± 0.19 (43.68)
AB	300 mg/kg, p.o	0.63 ± 0.14 (11.21)	0.78 ± 0.19 (16.12)	0.79 ± 0.20** (56.11)	1.87 ± 0.14 (1.57)
AB	500 mg/kg, p.o	0.39 ± 0.12 (45.07)	0.52 ± 0.13 (44.08)	0.68 ± 0.11** (62.22)	0.68 ± 0.11 (64.21)

n = 5. Results are expressed as mean ± SEM. Percentage inhibition are in brackets.

*P > 0.05, **P < 0.01 as compared to control, AB = alcoholic bark extract.