is the generic typically prescribed for the brand name Zaditor. Ketotifen is prescribed commonly to be used for the treatment of symptoms related to allergies
such as eyes that itchy, watery eyes, and eyes that burn as a result of contact with dust, mold, pollen, dander, and other allergens. Ketotifen is an antihistamine. Histamine is the body’s natural chemical release in response to allergens which cause the symptoms which make the patient uncomfortable. Ketotifen is not appropriate for irritation caused by contact lenses.
Ketotifen received a category C pregnancy risk from the American Food and Drug Administration. This means that ketotifen may cause harm or birth defects in a developing fetus. It has yet to be determined whether or not ketotifen passes through the mother’s breast
milk and affects a nursing baby. Women who are pregnant or nursing should not receive a prescription for ketotifen. Ketotifen is not appropriate for children under the age of 3 years.
Ketotifen comes in a dispenser with an eye dropper. It is very important that the eye dropper remain sterile and that it doesn’t touch any surfaces, fingers, or skin. An eye infection may result from a contaminated eye dropper. Patients should be instructed to wait at least ten minutes before placing contact lenses in the eye after using ketotifen.
If the patient misses a dose, the dose can be taken when remembered. However, using too much ketotifen can cause an overdose, thus doses should not be taken too closely together or at the same time. Using too much ketotifen can cause overdosing, although overdoses are not expected to cause life threatening health consequences. Medical assistance should be immediately sought to avoid potentially serious consequences regarding vision.
Side effects are typically mild. The most common side effects include burning after use, irritation or stinging after application, dry eyes, or an increased sensitivity to sunlight or bright light.
Should a patient experience a serious side effect, they should seek immediate medical attention. Serious side effects include symptoms which include pain in either eye, an increase in eye itch or irritation, changes in vision, or signs of infection including drainage, redness, or swelling
of the eyelid. An allergic reaction presents a risk to those who are starting the use of ketotifen, and would require immediate medical attention. Allergic reactions
are usually signified by the swelling of the face, lips
, or throat, hives
, and difficulty breathing.
Patients and physicians should always communicate clearly about the use of daily medications, and patients should always inform physicians before making changes to daily medications. This includes prescription medications, over the counter medications, vitamins, herbal remedies, and energy supplements. These can all interact with medications such as ketotifen at various levels, depending on the dose and the patient’s medical history.
Patients should be instructed to inspect their medication before using the eye dropper and placing the medication in the eye. If the medication has changed color or has particles or specks floating in it the patient should be instructed to contact the physician. Many physicians will want to see the medication if it is altered, and patients should not discard it until after speaking with the prescribing physician.
Ketotifen has the following structural formula:
• Molecular formula of ketotifen is C19H19NOS
• Molecular weight is 309.426 g/mol
• Ketotifen available : 1mg pills