Mai Wei Di Huang Wan (Ophiopogon, Schisandra and Rehmannia Pill), nourishes Liver and Kidney Yin, astringes Lung Qi and nourishes Lung Yin. This formula has similar actions as Liu Wei Di Huang Wan (Six-Ingredient Pill with Rehmannia). It also contains the herbs Mai Dong (Radix Ophiopogonis) and Wu Wei Zi (Fructus Schisandrae Chinensis) that give it a more specific ability to treat Kidney and Lung Yin deficiencies with clinical signs of dry cough, shortness of breath, constipation or dry feces, as well as the clinical signs of Yin deficiency found in Liu Wei Di Huang Wan (Six-Ingredient Pill with Rehmannia). The original source of Mai Wei Di Huang Wan is from the Yi Ji (Levels of Medicine).1 Mai Wei Di Huang Wan is composed of the same six herbs as Liu Wei Di Huang Wan (Six-Ingredient Pill with Rehmannia). Shu Di Huang (Rehmannia), the chief herb, tonifies Kidney Yin and Jing (essence) and fills the marrow. Shan Zhu Yu (Cornus) nourishes the Liver and Kidney and astringes Jing. Shan Yao (Dioscorea) tonifies the Spleen and Kidney and consolidates Jing. Together, these three tonic herbs address deficiencies of the Kidney, Liver, and Spleen