Terpenes are among the most widespread and
chemically diverse groups of natural products. The
sesquiterpene acts as irritants when applied
externally and when consumed internally, their
action resembles that of gastrointestinal tract
irritant. A number of sesquiterpene lactones have
been isolated and have been shown to elicit
antibacterial and antiprotozoal properties. The
sesquiterpene lactone, palasonin, isolated from
Butea monosperma has anthelmintic activity,
inhibits glucose uptakeand depletes the glycogen
content in Ascaridia galli