The Eight Flavors Dihuang Pill, also known as Kidney Qi Pill, is based on the Six Flavors Dihuang Pill with the addition of Gui Zhi and Radix et Rhizoma Pseudostellariae, and is mainly used to treat some symptoms of kidney yang deficiency. In this formula, Shu Di Huang mainly nourishes the kidney essence and fills the marrow. The herb is used to nourish the liver and kidneys; the herb is used to strengthen the spleen and benefit the qi; the herb and the cinnamon stick are used to warm the kidneys and help the yang and stimulate the kidney qi; the herb is used to strengthen the spleen and benefit the kidneys; the herb and the dampness and diarrhea are used to permeate and regulate the water channels. Therefore, this medicine can mainly nourish the kidney and help Yang, biochemical kidney energy, and then treat patients with soreness and weakness of the waist and knees, coldness below the waist, as well as urinary disorders, pale and fat tongue, and sunken and weak pulse.