The tonifying function of Gancao（ Radix Glycyrrhizae licorice） displays diversified characteristics

due to its most sweet and pure feature

which is the key to diversified compatibility and extensive use. Besides tonifying Qi

the functions of Gancao also include tonifying Qi

blood

Yin and Yang of the five internal organs. It mainly focuses on tonifying heart including nourishing heart to restore pulse and to tranquilize mind

tonifying spleen including tonifying middle-Jiao and Qi

ascending up spleen-Qi and Yang

tonifying spleen to digest and to clearing damp and tonifying lung. Its function to tonify liver and kidney is weaker. In addition

its function of tonifying also reflects on combination to change reaction of flavors of herbal medicines. It is a representative herbal medicine of pungent combined sweet to turn into Yang and sour combined sweet to turn into Yin.