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Allegra Side Effects Center
Medically reviewed by Min Clinic Staff | Updated: January 2026
- Generic Name: fexofenadine hcl
- Brand Name: Allegra
- Drug Class: How Do Second Generation Antihistamines Work?
Allegra (Fexofenadine Hcl) side effects drug center
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Allegra Side Effects Center
What Is Allegra?
Allegra (fexofenadine hydrochloride) is an antihistamine used to treat allergic symptoms of seasonal allergic rhinitis, including:

