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ASTEPRO ALLERGY vs PATADAY ONCE DAILY RELIEF

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated June 7, 2026·How we rate

Rating

New
New

Pharmacy pays

$0.58 /mL
$1.23 /g

Type

OTC
OTC

Active ingredient

AZELASTINE HYDROCHLORIDE
OLOPATADINE HYDROCHLORIDE

Dosage forms

Spray/Inhaler, metered
Solution

Drug class

Histamine-1 Receptor Antagonist
Histamine-1 Receptor Antagonist

Boxed warning

None
None

Treats

Allergic Conjunctivitis, Perennial Allergic Rhinitis, Vasomotor Rhinitis
Allergic Conjunctivitis

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Where to buy

Buy over-the-counter from trusted retailers.

Frequently asked questions

What is the difference between Astepro Allergy and Pataday Once Daily Relief?

Astepro Allergy contains Azelastine Hydrochloride, while Pataday Once Daily Relief contains Olopatadine Hydrochloride — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.