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Experimental Study on Antitussive and Expectorant Effects of Cudweed

Yu Bin1,Du Jin2,Zhang Yazhen2,et al 1.Zhejiang University of Traditional Chinese Medicine,Hangzhou(310053); 2.Jinhua Hospital of Traditional Chinese Medicine  
[Objective]To study the antitussive and expectorant effects of aqueous extract of cudweed.[Method] The mice cough model induced by ammonia,guinea pig cough model induced by acitric acid and method of stimulating mouse’ trachea with phenol red were used in this experiment.[Results]The aqueous extract of cudweed significantly prolonged the tussive delitescence of mice,decreased the tussive times of guinea pigs and increased the secretion of mouse’ trachea induced by phenol red.[Conclusion]The antitussive and expectorant effect of cudweed was obvious.
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