Naphcon A vs. Zaditor

Reviewed on 12/3/2020

Are Naphcon A and Zaditor the Same Thing?

Naphcon A (naphazoline hydrochloride and pheniramine maleate) and Zaditor (ketotifen fumarate) Ophthalmic Solution are used for the temporary relief of redness and itching of the eye(s) due to ragweed pollen, dust, grass, and animal dander and hair.

Naphcon A and Zaditor both contain an antihistamine. Naphcon A also contains a decongestant/redness reliever.

Naphcon A is available over-the-counter (OTC).

Side effects of Naphcon A and Zaditor that are similar include eye stinging.

Side effects of Naphcon A that are different from Zaditor include eye redness, dilated pupils, and blurred vision.

Side effects of Zaditor that are different from Naphcon A include burning/irritation of the eye, eye dryness, headache, stuffy/runny nose, bad taste in your mouth, and increased sensitivity to light.

Naphcon A may interact with MAO inhibitors, drugs for high blood pressure, and tricyclic antidepressants.

Zaditor may interact with other drugs.

What Are Possible Side Effects of Naphcon A?

Common side effects of Naphcon A include:

  • eye stinging or redness,
  • dilated pupils, or
  • blurred vision

What Are Possible Side Effects of Zaditor?

Common side effects of Zaditor include:

  • burning/stinging/irritation of the eye,
  • eye dryness,
  • headache,
  • stuffy/runny nose,
  • bad taste in your mouth, and
  • increased sensitivity to light.

Tell your doctor if you have unlikely but serious side effects of Zaditor including:

  • eye pain,
  • increased redness or swelling of the eye, or
  • vision problems.

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What Is Naphcon A?

Naphcon A (naphazoline hydrochloride and pheniramine maleate) is a combination of a decongestant/redness reliever and an antihistamine used for the temporary relief of redness and itching of the eye(s) due to ragweed pollen, grass, and animal dander and hair. Naphcon A is available over-the-counter (OTC).

What Is Zaditor?

Zaditor (ketotifen fumarate) Ophthalmic Solution is an antihistamine used to treat itching of the eyes caused by allergy to dust, pollen, animals, or other allergens. Zaditor is available in generic form.

What Drugs Interact With Naphcon A?

Naphcon A may interact with:

Tell your doctor all medications and supplements you use.

What Drugs Interact With Zaditor?

Other drugs may interact with Zaditor ophthalmic. Tell your doctor about all the prescription and over-the-counter medications and supplements you use.

How Should Naphcon A be Taken?

The dose of Naphcon A for adults and children 6 years and over is 1 or 2 drops in the affected eye(s) up to 4 times daily.

How Should Zaditor be Taken?

The dose of Zaditor for 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.

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References
WebMD. Naphcon A Product Information.

https://www.webmd.com/drugs/2/drug-8560/naphcon-a-ophthalmic-eye/details

WebMD. Zaditor Product Information.

https://www.webmd.com/drugs/2/drug-17484/zaditor-ophthalmic-eye/details

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