Other Information: Only for use in the eye. Store between 39-77 degrees F (4-25 degrees C). Misc: For ages 3 years and older. 30 day supply. Ketotifen fumarate ophthalmic solution (0.035%). Sterile. Up to 12 hours. Works in minutes. Questions? Call toll-free 1-800-757-9195; www.zaditor.com. Serious side effects associated with use of this product may be reported to this number. Up to 12 hour itch relief.