Table 6.

Effect of methanolic extract of the bark of Lawsonia inermis on Open Field test in mice

Group	Dose	Number of Movements
		0 min	30 min	60 min	90 min	120 min
Group-I	10 ml/kg	119 ± 1.469	115 ± 1.77	108.75±2.234	98.25±2.305	106.25± 1.942
Group-II	1 mg/kg	107.25± 2.510	72 ± 2.450*	49.5± 1.908*	21.25±1.608*	11.5±1.641
Group-III	300 mg/kg,	237.5 ± 5.00*	108.5± 4.533	69.75±5.019*	30±4.272*	-
Group-IV	500 mg/kg,	160.5± 8.612	94.75± 5.659	88.75±5.475	49±6.026*	-

Values are mean±SEM, (n = 4),

^* p<0.05, Dunnet’s test as compared with vehicle control. Group I animals received vehicle (1% Tween 80 in water), Group II received diazepam 1 mg/kg body weight, Group III and Group IV were treated with 300 and 500 mg/kg body weight (p.o.) of the methanolic extract of Lawsonia inermis barks, respectively.