Guaifenesin
Brand: Mucinex, Robitussin
No boxed warning on the current FDA label.
- Caution
- Not for a chronic cough from smoking, asthma, or emphysema; see a provider if cough lasts over 7 days.
Common side effects
- Nausea
- Dizziness
- Drowsiness
- Headache
Key interactions
- No significant drug interactions are known
Counseling points
- Drink plenty of water to help thin the mucus
- Loosens mucus; it does not suppress a cough
- Do not crush extended-release tablets
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