Side Effects of Ketotifen
Stuffy or runny nose, headaches, and eye redness are the most commonly reported side effects of ketotifen. When side effects occur, in most cases, they are mild and either do not require medical attention or can be treated easily. Some side effects, while occurring infrequently, are potentially serious and should be reported to your healthcare provider, including swollen eyelids, unexplained rash, or eye pain.
As with any medicine, ketotifen fumarate ophthalmic solution (Alaway®, Zaditor®, Zyrtec® Eye Drops, Claritin® Eye) can cause side effects. However, not everyone who takes the medication will have problems. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with Ketotifen. Your healthcare provider can discuss a more complete list of side effects with you.)
Some ketotifen side effects, while occurring infrequently, are potentially serious and should be reported immediately to your healthcare provider. These include, but are not limited to:
- Signs of an eye infection, such as:
- Severe eye redness or eye pain
- Crusting of the eye
- Swollen eyelids
- Signs of an allergic reaction to the medication, such as:
- An unexplained rash or hives
- Itching (more than the usual itching related to eye allergies)
- Unexplained swelling, especially of the mouth, lips, or throat
- Wheezing or difficulty breathing.
Of course, any eye drop can cause problems (such as an eye infection) if it is contaminated, so be sure to avoid touching the tip of the dropper to any surface, including the surface of the eye. Never use an eye drop that has become cloudy or discolored.