Sarmentosin significantly lowers the SGPT level of patients suffering from chronic viral hepatitis, and shows a suppressive effect on cell-mediated immune responses in mice.

Zedoarondiol has anti-inflammatory activity, inhibits iNOS, COX-2, and pro-inflammatory cytokine expressions by suppressing the phosphorylations of IKK and MAPKs, and by subsequently inactivating the NF-kappaB pathway.

(-)-Fenchone is a bicyclic monoterpenoid widely distributed in plants and can be extracted from Foeniculum vulgare and Peumus boldus.