单词	guaifenesin
释义	guaifenesin /ˌɡwīˈfenəsin / noun An expectorant used in cough syrups and sometimes for pain relief from fibromyalgia.Despite its broad use in the treatment of cough, multiple studies have found inconsistent results supporting the effectiveness of guaifenesin as an expectorant or cough suppressant.... One trial of the expectorant guaifenesin reported a significant benefit over placebo, but a second trial found no differences between the treated and placebo groups. The Food and Drug Administration stressed that the expectorant, extended-release guaifenesin, is not dangerous.
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