Ketotifen is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.
Ketotifen ophthalmic (for use in the eyes) is used to treat itching of the eyes caused by allergy to dust, pollen, animals, or other allergens.
Ketotifen ophthalmic may also be used for purposes not listed in this medication guide.
