title: [Does guaiphenesin lack expectorant qualities?].
mesh_terms: D002986:Clinical Trials as Topic; D004341:Drug Evaluation; D006140:Guaifenesin / Q000494:pharmacology*; D006801:Humans
chemical_list: D006140:Guaifenesin
vernacular_title: Saknar guaifenesin expektorerande egenskaper?