The specific efficacy and function of Kechuanshun Pill in clinic are as follows: 1. The specific efficacy of Kechuanshun Pill can mainly play the role of relieving cough, relieving asthma, dispersing lung and resolving phlegm. 2. Specific function of Kechuanshun Pill. In clinical practice, this product is mainly used for cough, asthma, excessive phlegm, chest tightness, etc. caused by turbid phlegm obstructing the lung and lung loss. At the same time, it can also relieve bronchial asthma, acute attack of chronic bronchitis, emphysema and other diseases. Kechuanshun Pill is a very commonly used oral pure Chinese medicine preparation in clinical practice. The drug composition mainly includes mulberry white, Peucedanum Peucedanum, Zisuzi, Fructus Trichosanthis, Poria cocos, Houttuynia cordata, tangerine peel, bitter almond, liquorice, etc.