Zaditor is Clinically Proven to Relieve Itchy Eyes For Up to 12 Hours (2 x 0. 17 fl oz bottles) Up to 12 hours eye itch relief Works in Minutes Original Prescription Strength For ages 3 years and older 60 day supply Sterile You don't have to keep stopping your day to relieve your itchy eyes. ZADITOR Eye Drops is the first over-the-counter antihistamine eye drop that's strong enough to last up to 12 hours with just one drop. So start everyday with ZADITOR Eye Drops, and just keep going. Suggested Use: Adults and children 3 years of age and older: Put 1 drop in the affected eye(s) twice daily, every 8-12 hours, no more than twice per day. Children under 3 years of age: Consult a doctor Only for use in the eye. Store between 4°-25°C (39°-77°F). UPC: 300654011064 Weight: 0.32 lbs