Data Source: Information sourced from the FDA OpenFDA database. Database last updated: March 2026. Learn more about our data sources →
Drug Pricing — Cost Plus Drugs
Guaifenesin
400mg · Tablet
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Uses & Indications
Uses ■ helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive
Dosage & Administration
Directions ■ do not crush, chew, or break tablet ■ take with a full glass of water ■ this product can be administered without regard for timing of meals ■ adults and children 12 years of age and over: 1 tablet every 12 hours. Do not exceed 2 tablets in 24 hours. ■ children under 12 years of age: do not use
Side Effects
No adverse reactions listed in FDA label.
Warnings & Precautions
Warnings Do not use ■ for children under 12 years of age
Drug Interactions
No interactions listed. Consult your pharmacist.
Contraindications
See prescribing information.
Storage & Handling
Other Information ■ Tamper evident: Do not use if carton is open or if printed seal on blister is broken or missing ■ store between 20-25°C (68-77°F)