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Zaditor Eye Drops are made up of an antihistamine called ketotifen. We carry the brand choice of this medication in 0.03%

Zaditor Eye Drops are prescribed to help treat symptoms of the eye caused by allergens. Allergens are substances that cause one to have an allergic reaction and may include dust, pollen, animal dander, and thousands of other substances, all depending on each individual person. However, no matter what the allergen may be, the symptoms will always be quite similar to each other. Symptoms may include sneezing, watery eyes, runny nose, and itching. This medication will help treat watery and itchy eyes associated with allergens.

Zaditor Eye Drops (ketotifen) is effective at treating symptoms of the eye caused by allergens because as an antihistamine, it is able to reduce the effects of the natural histamine in our bodies that cause us to react to allergens.

Always follow directions given to you by your doctor. Instructions can usually also be found on the prescription or prescription bottle/container.

Do not use these eye drops when you are wearing contact lenses; this drug may discolor them. Wait at least 10 minutes before putting your contacts back in. If the color of the solution has changed, do not use the medication. Contact your doctor if your condition does not improve within 72 hours. Store this medication at room temperature in a low-risk area of moisture and heat. Do not freeze this product.

How to administer Zaditor Eye Drops (ketotifen)

  • Tilt your head back
  • Look upward
  • Form a pouch by pulling down on your lower eyelid
  • Hold the dropper above the eye; apply one drop into the pouch
  • Look down and gently close your eyes for 1 – 2 minutes


Do not use Zaditor Eye Drops (ketotifen)

Do not use these eye drops if you are allergic to ketotifen or if you have an untreated eye infection or eye irritation caused by wearing a contact lens. This medication should not be given to a child under 3 years old.

Dose adjustment or special precautions may be required

Tell your doctor if you have ever had glaucoma or any other eye condition or problem. Tell your doctor about all medical conditions you currently have, any medications you currently take, and if you have any drug allergies; this is to ensure this medication is completely safe for you to use.


During pregnancy, Zaditor Eye Drops should only be used if the medication is clearly needed. Consult your doctor if you are pregnant before using this medication.

After applying this medication, you may find your vision temporarily blurred. This should not alarm you as it usually goes away on its own within an hour or two. Do not drive until you are sure you can perform hazardous activities.

Side Effects

Common side effects of Zaditor Eye Drops (ketotifen) may include:

mild burning, stinging, or eye irritation; dryness of the eyes; or increased sensitivity to light.

The above side effects should not alarm you.

Serious side effects of Zaditor Eye Drops (ketotifen) may include:

redness, drainage, eyelid swelling, or other signs of infection; eye pain; vision changes; or severe itching of the eyes worse than before using the medication.

If you have any of the above side effects, contact your doctor right away.

Please note this is not a complete list of side effects. Not everyone experiences side effects; they are not guaranteed. If you do have side effects and they become unmanageable, consult your doctor about alternate medications.


How old do you have to be to use this medication?

To use this medication safely and effectively, you must be at least 3 years old.

What if I miss a dose?

Take the missed dose as soon as you remember or skip it if your next dose is approaching soon. Do not attempt to make up for a missed dose by doubling up on dosages.

What should I avoid while using this medication?

Avoid using other eye drops while using this medication unless your doctor has specifically told you.

What else should I know about Zaditor Eye Drops before I start treatment?

If your doctor has prescribed other eye drops to use while also using Zaditor Eye Drops, apply the other medication at least 5 minutes in between. If your doctor has prescribed an ointment for the eye as well as Zaditor, ensure you use the eye drops first to allow the eye drops to enter the eye, which may be harder to do if the ointment is applied first.

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