Ketotifen
Also sold as: Zaditen
Prescription neededEye and ear medicines
Comes as:Eye dropsTabletSyrup
Usual adult dose
Eye drops: 1 drop in each affected eye twice a day. Tablets or syrup (to prevent allergy): 1 mg twice a day with food, as advised by a doctor.
Your doctor may give you a different dose. Children's doses depend on weight.
Side effects
Common
- drowsiness and weight gain (tablets or syrup)
- stinging or dry eye (drops)
Serious — get help
Stop taking it and see a doctor straight away if you notice:
- seizures (rare
- mainly in children with epilepsy)
- severe allergic reaction
Do not take it, or take care, if
- Epilepsy (tablets or syrup: use with caution)
- Do not drive if the tablets make you drowsy
- Allergy to any ingredient
Interactions
Medicines that can react with this one.
Moderate1 medicineTake together only with care. Ask your doctor or pharmacist.
- Diazepam
Ketotifen tablets add to the drowsiness caused by sedatives.