Yuan Zhi can tranquilize and educate the mind, dispel phlegm and open the orifices, and dissipate carbuncles and swellings. Its alias is Xiao Cao, Fine Cao, Little Chicken Leg, Fine Leaf Yuan Zhi, etc. The medicinal properties of Yuan Zhi are slightly warm, with a pungent, bitter taste. It belongs to the heart, kidney and lung meridians. The effects of Yuan Zhi include tranquilizing and educating the mind, dispelling phlegm and opening the orifices, and dispersing carbuncles and swellings. It is mainly used for insomnia and dreaminess, forgetfulness and palpitations, trance, cough and phlegm, sores and swellings, and breast pain caused by disorders of the heart and kidney. It is contraindicated for people with fire in the heart and kidney and yin deficiency and hyperactivity. Modern pharmacological studies have shown that Fructus Farreri has an expectorant and sedative effect; it also has an excitatory effect on the uterus and a hypotensive effect; it also has a strong hemolytic effect and a certain antibacterial effect. In vitro tests have shown that Yuan Zhi has anti-tumor effects.