ASTELIN vs PATADAY ONCE DAILY RELIEF

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 15, 2026·How we rate

Attribute	ASTELIN	PATADAY ONCE DAILY RELIEF
Rating	72/100	New
Pharmacy pays	$0.58 /mL	$1.23 /g
Type	RX	OTC
Active ingredient	AZELASTINE HYDROCHLORIDE	OLOPATADINE HYDROCHLORIDE
Manufacturer	Rising	Alcon
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

astelin pataday once daily relief

Rating

72/100

New

Pharmacy pays

$0.58 /mL

$1.23 /g

Type

OTC

Active ingredient

AZELASTINE HYDROCHLORIDE

OLOPATADINE HYDROCHLORIDE

Manufacturer

Rising

Alcon

Dosage forms

Spray/Inhaler, metered

Solution

Drug class

Histamine-1 Receptor Antagonist

Boxed warning

None

Treats

Allergic Conjunctivitis, Perennial Allergic Rhinitis, Vasomotor Rhinitis

Allergic Conjunctivitis

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Frequently asked questions

What is the difference between Astelin and Pataday Once Daily Relief?

Astelin 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.