An expectorant that allegedly reduces the viscosity of sputum, thus facilitating its elimination. SYN: glyceryl guaiacolate, guaiacol glyceryl ether.
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guai·fen·e·sin g(w)ī-'fen-ə-sən n the glyceryl ether of guaiacol C10H14O4 that is used esp. as an expectorant called also glyceryl guaiacolate
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n.
an expectorant used in cough mixtures and tablets.
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guai·fen·e·sin (gwi-fenґə-sin) [USP] an expectorant believed to act by reducing sputum viscosity, administered orally. Called also glyceryl guaiacolate.Medical dictionary. 2011.