Vietnamese ginseng leaves had the effect on the
central nervous system, shortening
pentobarbital-induced sleeping
time in smaller doses and lengthening
pentobarbital- induced sleeping
time in larger doses.
Vietnamese ginseng leaves extract (600, 1200mg/kg p.o) and its total
saponin (200mg/kg p.o) significantly recovered the stress-induced decrease in
pentobarbital sleep to the normal level. In the other
hand,
Vietnamese ginseng leaves extract and its total
saponin have the invigoration and
antioxidant effects