Drug reference
guaifenesin
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Drug class
Respiratory (Combination(Respiratory))
Mechanism of action
Reduces viscosity of secretions by increasing amount of respiratory tract fluid and irritates gastric mucosa.
Common side effects
- Dizziness
- Drowsiness
- Nausea
- Diarrhea
Related conditions
Frequently asked questions
What drug class is guaifenesin?
guaifenesin belongs to: Respiratory.
How does guaifenesin work?
Reduces viscosity of secretions by increasing amount of respiratory tract fluid and irritates gastric mucosa.
What are the common side effects of guaifenesin?
Dizziness, Drowsiness, Nausea, Diarrhea
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