Guaifenesin appears to be effective in managing HIV-infected patients with symptomatic rhinosinusitis. Other Major Uses Used as expectorant in pharyngitis, bronchitis, and asthma. No serious adverse effects have been reported with the use of guaifenesin. Doses of guaifenesin larger than those required for expectorant action may produce emesis, but GI upset at ordinary dosage levels is rare. Contraindications Contraindicated in patients with hypersensitivity to guaifenesin.
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Protect from freezing. Management of sinusitis in adult cystic fibrosis. Am J Rhinol. Otolaryngol Head Neck Surg. Effects of guaifenesin on nasal mucociliary clearance and ciliary beat frequency in healthy volunteers.