1% concentration.HSA/FSA EligiblePataday® Twice Daily Relief, formerly known as Patanol®, with a 0.. This higher concentration provides longer-lasting eye allergy itch relief.
A single drop of Pataday® Once Daily Relief works directly on the cells that make eyes itch..HSA/FSA EligiblePataday® Once Daily Relief is the first once-daily eye allergy itch relief drop that's available without a prescription.