The nephrotoxicity of Radix et Rhizoma Pinelliae varies depending on the method of infusion. Compared with the raw product, the nephrotoxicity of this drug has been reduced, but it should not be used indiscriminately, and must be guided by a professional doctor. Semenxia japonica is a concoction of raw Semenxia, including Semenxia Qing, Semenxia Jiang, and Semenxia Fahrenheit, of which Semenxia Qing is obtained after soaking in alum solution; Semenxia Jiang is made from water-soaked raw Semenxia, sliced ginger, and alum boiled through and then dried; and Semenxia Fahrenheit is made from licorice and soaked in lime solution. The toxicity of half-summers has been reduced by concocting, and nephrotoxicity can usually be considered not very great. Qing Hanxia is good at drying dampness and resolving phlegm (removing phlegm from the body with dampness-drying medicines), and is suitable for stomach and epigastric plumpness (distension and discomfort in the stomach) and coughing with damp phlegm; Jiang Hanxia is good at stopping vomiting and lowering rebelliousness, warming up the middle, and resolving phlegm, and is suitable for vomiting of phlegm and drink (the pathological products of impaired metabolism of water and liquids), as well as for stomach and epigastric plumpness; Fa Hanxia is good at harmonizing the spleen and stomach and getting rid of cold and phlegm, and is suitable for phlegmatic coughing, phlegmatic vertigo and palpitations, and phlegm-convulsive headaches. Although the nephrotoxicity of Semenxia is reduced, it can not be used indiscriminately, this drug is prohibited for use in yin deficiency and dry cough, fluid injury and thirst, if you need to use the drug must be guided by a professional Chinese medicine practitioner.