Pataday ® is made to relieve the eye allergy itch caused by these everyday culprits-both indoors and out. Each of our three Pataday ® products contain a full prescription strength olopatadine formula and are available without a prescription. Olopatadine was previously the #1 prescribed eye allergy itch relief active ingredient.
It goes to work on mast cells in the eye. (Mast cells house the histamines that make your eyes itch.) Pataday stabilizes the mast cells, preventing them from releasing histamines. Pataday ® also blocks histamines that have already been released from attaching to the histamine (H1) receptors in the eye, breaking the chain of allergic reaction.
