Table 1 Experimental design for CHF. Ext tretament groups used in the study

I

Normal control

Normal saline (8 mg/kg)

p.o.

II

Negative control

scopolamine (1 mg/kg)

i.p.

III

Positive control

Donepezil (2 mg/kg) + scopolamine (1 mg/kg)

p.o, i.p

IV

Treatment group

CHF. Ext (50 mg/kg) + scopolamine (1 mg/kg)

p.o

V

Treatment group

CHF. Ext (100 mg/kg) + scopolamine (1 mg/kg)

p.o

VI

Treatment group

CHF.Ext (200 mg/kg) + scopolamine (1 mg/kg)

p.o