allergy Different Composition

Benadryl vs Avil

Both 1st-gen antihistamines. Very sedating.

Last updated: April 2026

Benadryl

J&J

Generic:Diphenhydramine 25mg
Type:Tablet

Avil

Sanofi

Generic:Pheniramine 25mg
Type:Tablet
Aspect
Benadryl
Avil
Composition
Diphenhydramine 25mg
Pheniramine 25mg
Manufacturer
J&J
Sanofi

Verdict

Both cause significant drowsiness. Use newer antihistamines instead.

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Medical Disclaimer: This comparison is for educational purposes only and does not constitute medical advice. Always consult your doctor or pharmacist before switching or starting any medicine. Individual responses may vary based on health conditions, dosage, and other factors.