An ophthalmic antihistamine/mast cell stabilizer drop called Zaditor is used to treat allergic conjunctivitis-related itching temporarily. Zaditor can be purchased over-the-counter without a prescription. Users of Welzo can use this article for informational purposes to better understand Zaditor.

Side Effects

The most frequent adverse reaction to taking Zaditor is an eyeburn or stinging sensation. Usually, this passes after a few minutes. You should stop using the product and see your doctor if the irritation persists.

Additional negative effects include:

wet eyes

moist eyes

Angular eyes

Having red eyes



Other potential side effects include headache, dizziness, dry eyes, watery eyes, itchy eyes, and redness of the eyes. You should stop using and see your doctor if you experience any of these side effects. Although Zaditor is typically well tolerated, there is always a chance of side effects. Consult your doctor or pharmacist if you have any questions or concerns about using Zaditor.


Following ocular administration, zaditor is quickly absorbed, reaching its peak concentrations in 3 hours. The half-life of elimination is roughly 6 hours. The liver converts zaditor into urine-excreted waste.

Indications And Usage

The temporary relief of itching brought on by allergic conjunctivitis is indicated for Zaditor.

Dosage And Administration

One drop in each eye, once daily, is the recommended Zaditor dosage. Zaditor may be used as often as required, but no more than four times in a 24-hour period is recommended. Before using Zaditor, take out any contact lenses you are wearing, and wait at least ten minutes before putting them back in.