CHLORPHENIRAMINE MALEATE vs PATADAY ONCE DAILY RELIEF

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 6, 2026·How we rate

Attribute	CHLORPHENIRAMINE MALEATE	PATADAY ONCE DAILY RELIEF
Rating	70/100	New
Pharmacy pays	—	$1.27 /g
Type	RX	OTC
Active ingredient	CHLORPHENIRAMINE MALEATE	OLOPATADINE HYDROCHLORIDE
Manufacturer	Roxane	Alcon
Dosage forms	Tablet	Solution
Drug class	Histamine-1 Receptor Antagonist	Histamine-1 Receptor Antagonist
Boxed warning	None	None
Treats	Perennial Allergic Rhinitis, Urticaria	Allergic Conjunctivitis

chlorpheniramine maleate pataday once daily relief

Rating

70/100

New

Pharmacy pays

—

$1.27 /g

Type

OTC

Active ingredient

CHLORPHENIRAMINE MALEATE

OLOPATADINE HYDROCHLORIDE

Manufacturer

Roxane

Alcon

Dosage forms

Tablet

Solution

Drug class

Histamine-1 Receptor Antagonist

Boxed warning

None

Treats

Perennial Allergic Rhinitis, Urticaria

Allergic Conjunctivitis

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Frequently asked questions

What is the difference between Chlorpheniramine Maleate and Pataday Once Daily Relief?

Chlorpheniramine Maleate contains Chlorpheniramine Maleate, 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.