Drug reference
fexofenadine
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 (Anti Histamine)
Mechanism of action
H1 histamine receptor antagonist; competes for H1-receptor sites in target cells in the respiratory tract, blood vessels, and gastrointestinal tract; major metabolite of terfenadine.
Common side effects
- Vomiting
- Headache
- Cough
- Diarrhea
Related conditions
Frequently asked questions
What drug class is fexofenadine?
fexofenadine belongs to: Respiratory.
How does fexofenadine work?
H1 histamine receptor antagonist; competes for H1-receptor sites in target cells in the respiratory tract, blood vessels, and gastrointestinal tract; major metabolite of terfenadine.
What are the common side effects of fexofenadine?
Vomiting, Headache, Cough, Diarrhea
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