Learn more about Zaditor (ketotifen fumarate ophthalmic solution) antihistamine eye drops , the only eye drops strong enough to relieve itchy eyes due to eye allergens for up to 12 hours with just one drop.

Most OTC eye drops contain an antihistamine and a vasoconstrictor. Vasoconstrictors (decongestants) work by constricting blood vessels (vasoconstriction) to reduce the appearance of redness in the eye. These products can cause rebound redness for a period of time after discontinuation when overused.

Zaditor antihistamine eye drops are unlike most OTC eye allergy medications which contain a vasoconstrictor. Instead, Zaditor contains an antihistamine that relieves the itch in minutes plus a mast cell stabilizer to keep it working for up to 12 hours with just one drop!.

Most over-the-counter (OTC) eye allergy drops provide only short-term relief and require frequent re-dosing. Now, with Zaditor antihistamine eye drops, there’s no need to re-dose. Just one powerful drop lasts up to 12 hours. So you no longer need to carry eye drops everywhere you go.