Zaditor (Ketotifen) Customer Reviews


Rx Prescription Required    RxFormulation : Eye Drops

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Ketotifen is indicated for the prevention and treatment of ocular itching associated with allergies, such as seasonal and allergic conjunctivitis. This ophthalmic medication targets the histamine receptor to mitigate allergic symptoms. Ketotifen also acts as a mast cell stabilizer, inhibiting the release of natural mediators responsible for allergic responses.

Uses and Dosage

Ketotifen for ophthalmic use is a liquid solution that is administered by instillation into the eye(s). Typically, the recommended dosing frequency is twice daily, with a dosing interval of 8 to 12 hours between administrations.

To ensure optimal therapeutic outcomes, instill the eye drops at consistent times daily. Any deviation from the recommended dosage, such as using more or less medication or dosing more frequently than prescribed, is strongly discouraged.

To administer the eye drops, the following steps should be followed:

  1. Thoroughly wash hands with soap and water.
  2. Do not allow the dropper tip to touch the eye or any other surface, and ensure that it is kept clean.
  3. Tilt the head back and pull down the lower lid of the eye using the index finger to form a pocket.
  4. Hold the dropper as close to the eye as possible without making contact, and brace the remaining fingers against the face.
  5. Squeeze the dropper gently to instill a single drop in the pocket created by the lower eyelid while looking upwards.
  6. Remove the index finger from the lower eyelid and keep the eye closed for 2-3 minutes while tilting the head down.
  7. Apply gentle pressure to the tear duct using a finger.
  8. Use a tissue to wipe off any excess liquid from the face.
  9. Wash hands to remove any residual medication.

Side Effects

Some side effects may occur that usually do not need medical attention:

  • headaches
  • stuffy or runny nose
  • burning or stinging of eyes
  • dry eyes
  • eyelid disorder
  • eye sensitivity to light
  • increase in size of pupils
  • sore throat
  • tears

Inform your healthcare provider immediately if you experience any serious side effects:

  • eye redness and swelling
  • eye discharge
  • eye discomfort
  • eye pain
  • hives
  • increased itching of eyes
  • rash


Prior to using ketotifen, inform your healthcare provider or pharmacist of any known hypersensitivity to the drug or other allergens. This preparation may contain inactive ingredients, such as benzalkonium chloride in the multi-dose container, that could trigger allergic reactions or other adverse events.

Before initiating therapy with this medication, disclose to your doctor or pharmacist any relevant medical history, particularly regarding ocular disorders like glaucoma.

Temporary vision impairment may occur after administration of this medication. Refrain from driving, operating machinery, or performing any activities that necessitate clear vision until such time that it is safe to do so.

The use of this medication in children below three years of age should only be undertaken with explicit physician direction.

During pregnancy, the utilization of this medication should only be considered if the benefits to the mother outweigh the potential risks to the fetus. Consult your doctor to understand the potential risks and benefits of using this medication during pregnancy.

It remains unclear whether this medication passes into breast milk. Please consult with your healthcare provider before nursing.

Form and Strength

Zaditor is available in the following forms and strengths:

  • Zaditor eye drops:

    • 0.25mg/mL


How many times a day can you use Zaditor?

You shouldn’t use Zaditor eye drops more than twice in a 24 hour period.

Does Zaditor work immediately?

Zaditor works in minutes to deliver up to 12 hours of allergy eye itch relief.



Additional information

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Eye Drops



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Can Drug Store has provided information from third parties intended to increase awareness and does not contain all the information about Zaditor (Ketotifen). Talk to your doctor or a qualified medical practitioner for medical attention, advice, or if you have any concerns about Zaditor (Ketotifen).