Mouton has a certain degree of toxicity, clinical application should be cautious. The species of Mouton herbs are very complicated, there are Moutonaceae plant Mouton, Trifoliate Mouton, White Mouton and Aristolochiaceae plant Guan Mouton, etc. In recent years, due to the fact that Guan Mouton causes more adverse reactions such as kidney damage, it has been banned clinically, and the relevant departments have already classified the Mouton family plant Mouton as a genuine product. Mutong is bitter and cold in nature, it has the effect of diuretic and diaphoretic (to improve the problem of urine dribbling, small amount of urine is not passable), clearing the fire in the heart, and pass the menstruation and breast milk, clinically it is mostly used in the treatment of astringent pain in urine, edema, mouth and tongue sores, heartburn, urine and redness, menstrual irregularities, and breast milk is not passable, and its adverse reactions include nausea, vomiting, and chronic renal failure, etc.. Short-term high-dose and long-term small-dose applications may cause adverse reactions. It is contraindicated in pregnant women. Mouton should not be taken in excess or for a long period of time, because it has a certain degree of toxicity, and in serious cases, it can cause chronic renal failure; when using the drug, be sure to consult a Chinese medicine practitioner, and individuals should not take the drug on their own, so as not to cause adverse reactions.