This is a derivative of Minor Bupleurum which slows growth and metastasis of a variety of tumors. It down-regulates cyclin dependent kinases to promote cell cycle arrest and up-regulates Fas-R mediated apoptosis. Splenomegaly is a specific indication for Minor Bupleurum derivatives.

From a Chinese medical perspective, the toneless pulse represented a separation of Yang from Yin, causing it to move outwards and lead to vasodilation. As Yin and Yang separate, Qi declines, leading to low appetite and energy, pallor, and collapse.