The nature of Nuxia (Natrii Sulfas) and Dahuang (Rhei Radix et Rhizoma) is not limited to downward purgation, but also extends laterally. This allows for the thorough clearance of blood stasis both externally and internally.
Zhuye Shigao Tang (Bamboo Leaf and Gypsum Decoction)
Dan Zhuye (Bamboo Leaf, five qian), Shigao (Gypsum Fibrosum, five qian), Renshen (Ginseng Radix et Rhizoma, two qian), Gancao (Licorice Root, one qian), Maidong (Ophiopogonis Radix, three qian), Banxia (Pinelliae Tuber, two qian), Shengjiang (Fresh Ginger, three slices), Jingmi (Oryza Sativa, four qian).
The reason why the mouth becomes thirsty is that the fire-heat in the Stomach fails to descend, and the body fluids fail to ascend. The formula employs Zhuye (Bamboo Leaf), Shigao (Gypsum Fibrosum), and Maidong (Ophiopogonis Radix) to clear heat, while Renshen (Ginseng Radix et Rhizoma), Gancao (Licorice Root), and Jingmi (Oryza Sativa) are used to generate fluids.