Ma Huang is also known as ephedra. The acrid, slightly bitter and warm herb has been used in TCM to promote urination and sweating, and rid of cold,  sooth wheezing asthma, etc. as it calms dyspnea,  asthma, cough, etc., by enhancing the functions of lung and bladder channels. Ingredients 1. Saponins 2. 2,3,5,6-tetramethylpyrazine 3. 1-apha-terpineol,beta-terpineol 4. …