About guaifenesin
Expectorant
Used for
- Helps loosen mucus and make coughs more productive.
Usual adult dose
Usually 200–400 mg every 4 hours as needed; follow product directions and do not exceed 2,400 mg daily.
Usual dose in children
Children aged 6–11: usually 100–200 mg every 4 hours as needed, maximum 1,200 mg daily. Not generally recommended under 6 without medical guidance.
Common side effects
- Nausea or vomiting
- Dizziness
- Headache
- Stomach upset
Important warnings
- Drink fluids to help loosen mucus.
- Seek medical advice for cough lasting over 7 days, recurring, or accompanied by fever, rash, or persistent headache.
- Check the label: syrup concentrations vary, and combination products may contain other medicines.
- Do not use more than directed.
Pregnancy
Pregnancy safety information is limited; use only if a healthcare professional considers it necessary.
Breastfeeding
Information is limited; ask a healthcare professional before use while breastfeeding.
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 It may be incomplete or out of date.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.