Overview
Guaifenesin is an expectorant used to relieve chest congestion by thinning and loosening mucus in the airways, making coughs more productive. It is available over-the-counter and is commonly used for symptomatic relief of respiratory conditions.
Mechanism of Action
Guaifenesin enhances the output of respiratory tract fluid by reducing the adhesiveness and surface tension of mucus, facilitating its removal from the airways through ciliary action and coughing.
Indications
- Symptomatic relief of chest congestion due to the common cold, bronchitis, or other respiratory infections
- Helps loosen phlegm and thin bronchial secretions
Dosage
Adults and children 12 years and older: 200-400 mg every 4 hours, not to exceed 2400 mg in 24 hours. Children 6-12 years: 100-200 mg every 4 hours, not to exceed 1200 mg in 24 hours. Use as directed on product labeling or by a healthcare provider.
Contraindications
- Hypersensitivity to guaifenesin or any component of the formulation
Side Effects
- Nausea
- Vomiting
- Dizziness
- Headache
- Rash
- Stomach upset
Interactions
- No significant drug interactions reported, but consult a healthcare provider if taking other medications