Definition of guaifenesin in English:

guaifenesin

Syllabification: guai·fen·e·sin
Pronunciation: /gwīˈfenəsin
 
/

noun

An expectorant used in cough syrups and sometimes for pain relief from fibromyalgia.
More example sentences
  • 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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Word of the day grammarian
Pronunciation: grəˈme(ə)rēən
noun
a person who studies and writes about grammar