Astragalus membranaceus (AM) is a medicinal herb from the Leguminosae-family. Its dried roots, known as Astragali Radix, possess hepatoprotective, diuretic, tonic, and expectorant activities. They are
Radix Bupleuri (roots of Bupleurum spp.) is an important medicinal herb. Triterpenoid saponins of saikosaponins generally constitute the main class of secondary metabolites of plants in the Bupleurum