About guaifenesi n
Expectorant (mucus-loosening medicine)
Used for
- Helps loosen chest mucus and make coughs more productive.
Usual adult dose
Usual adult dose: 200–400 mg every 4 hours as needed; maximum 2,400 mg daily.
Usual dose in children
Ages 6–11: 100–200 mg every 4 hours as needed; maximum 1,200 mg daily. Not recommended under 6 without medical direction.
Common side effects
- Nausea or vomiting
- Stomach discomfort
- Dizziness
- Headache
Important warnings
- Persistent cough, fever, or breathing difficulty may need medical assessment.
- Drink fluids to help loosen mucus.
- Check the full label: cough syrups may contain other active ingredients.
Pregnancy
Use only when needed after discussing with a healthcare professional; pregnancy safety information is limited.
Breastfeeding
Safety information is limited; discuss use with a healthcare professional.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.