According to Fang You-Zhi in the Treatise on Febrile Diseases Caused by Cold with 500 Cases by Luo Xi-Wen: "after adoption of a purgative there is an internal vacuity. Thus, external Heat intrudes into the interior and ascends together with fluid up to the diaphragm, causing vexation. As the Heart is located above the diaphragm, when the Correct (zheng) Qi is vacuous and the Pathogenic (xie) Qi is strong, the spirit of the Heart is disturbed, causing delirium and irritablity, heaviness in the four extremes and general malaise." This is the original pattern associated with this formula, however, its modern applications have been greatly expanded. Calm Dragon Formula can be used for a wide range of psychological and emotional disorders, including acute anxiety when there is a Shao Yang or Liver Phlegm-Heat disorder, or an internal blockage of Yang Qi. It is highly effective in substance abuse programs for ameliorating withdrawal symptoms of cigarette, alcohol or drug dependencies. Its combination of warm, cold, supplementing and draining ingredients restores equilibrium to body and mind by regulating the Triple Burner (san jiao) mechanisms.