The preparation is used to suppress coughing and mucus production and to treat breathlessness, asthma and dry cough. Traditional practitioners believe it "nourishes lung yin, support's the spleen to clear phlegm and damp, strengthens the kidneys holding ability to relieve asthmatic breathless symptoms”.[1]
Preparation
The preparation is made at home and in factories.[1][2] Commercial products are sold in 12-ounce bottles.[1]
^CN application 1965932, Wéi, Zhèn-jié; Fù & Zhāng, Róng-cūn, "Pear extractive cold-pressing hypothermia preparation method and use thereof in preparation of 'Chuan Bei Xue Li' extract", published 2007-05-23, assigned to Wuhan Hua Shan Ren Fu Pharmaceutical Co., Ltd., application since discontinued