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More about Ketotifen

What is/are Ketotifen?

Ketotifen is a second-generation noncompetitive H1-antihistamine and mast cell stabilizer. It is most commonly sold as a salt of fumaric acid, ketotifen fumarate, and is available in two forms. In its ophthalmic form, it is used to treat allergic conjunctivitis, or the itchy red eyes caused by allergies. In its oral form, it is used to prevent asthma attacks. Side effects include drowsiness, weight gain, dry mouth, irritability, and increased nosebleeds.

The drug is marketed as ophthalmic solutions under the brand names Zaditor/Zaditen (Novartis), Alaway (Bausch and Lomb), Zyrtec Itchy-Eye Drops, and Claritin Eye. A generic version of Novartis' Zaditor, ketotifen fumarate ophthalmic solution, 0.025%, is available from Perrigo and distributed as store brand.

Adverse effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using ketotifen ophthalmic and call your doctor at once if you have any of these serious side effects:

  •     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.

Less serious side effects may include:

  •     Mild burning, stinging, or eye irritation;
  •     Dryness of the eyes; or
  •     Increased sensitivity to light.

This article uses material from the Wikipedia article Ketotifen, which is released under the Creative Commons Attribution-Share-Alike License 3.0.

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