Mizolastine

  • Mizolastine is less likely to cause drowsiness than some other types of antihistamine, however some people can still be affected. Make sure your reactions are normal before driving, operating machinery or doing any other jobs which could be dangerous if you were not fully alert.
  • Do not crush the tablets as this can cause too much medicine to be absorbed too quickly from the gut.
  • Never take more than the prescribed dose. If you forget to take a dose take it as soon as you remember but leave at least 24 hours before taking the next dose.

About mizolastine

Type of medicineAntihistamine
Used forAllergies including hayfever and skin reactions
Also calledMizollen®
Available asModified release (M/R) tablets

Exposure to pollen, pet fur, house dust or an insect bite can cause the body to produce a chemical called histamine. The release of histamine causes allergic symptoms that can include sneezing, watery eyes, a running or blocked nose and sometimes skin reactions such as itching, swelling and rashes. Antihistamines lessen the effects of histamine and help to relieve these symptoms.

Before taking mizolastine

Before taking mizolastine make sure your doctor or pharmacist knows:

  • If you are pregnant, trying for a baby or breast-feeding.
  • If you are taking antibiotics or antifungals.
  • If you suffer from heart problems or an irregular heartbeat.
  • If you suffer from liver problems.
  • If you suffer from epilepsy.
  • If you suffer from porphyria (a type of blood disorder).
  • If you have ever had an allergic reaction to this or any other medicine.
  • Mizolastine is not suitable for children under the age of 12 years.

How to take mizolastine

  • Take this medicine exactly as directed by your doctor.
  • Do not crush the tablets as this can cause too much medicine to be absorbed too quickly from the gut.
  • Never take more than the prescribed dose. If you forget to take a dose take it as soon as you remember but leave at least 24 hours before taking the next dose.

Can mizolastine cause problems

Along with their useful effects all medicines can cause unwanted side effects, which usually improve as your body adjusts to the new medicine. Speak with your doctor or pharmacist if any of the following side effects continue or become troublesome.

Common side-effectsWhat can I do if I experience this
Drowsiness (although this is less likely than with some other types of antihistamine), lack of energy, dizzinessMake sure your reactions are normal before driving, operating machinery or doing any other jobs which could be dangerous if you were not fully alert or able to see properly. Avoid drinking alcohol while taking mizolastine as this will increase feelings of drowsiness
Dry mouthIf you experience this try chewing sugar-free gum or sucking sugar-free sweets or pieces of ice
Feeling sick, indigestionThis should pass after a few days as your body adjusts to the new medicine. If it doesn't consult your doctor or pharmacist
DiarrhoeaDrink plenty of fluids and consult your pharmacist. If this doesn't stop within a few days consult your doctor
HeadacheAsk your pharmacist to recommend a suitable pain-killer. If the headache continues talk to your doctor
Increased appetite, mood changes, joint painIf any of these are troublesome, speak with your doctor

How to store mizolastine

  • Keep all medicines out of the reach and sight of children.
  • Store in a cool, dry place, away from direct heat and light.

Important information about all medicines


  • Keep all medicines out of the sight and reach of children.
  • Make sure that the person prescribing this medicine knows about any other medicines that you are taking. This includes medicines you buy and herbal and homeopathic medicines.
  • If you buy any medicines check with a pharmacist that they are safe to take with your other medicines.
  • Before taking this medicine tell your doctor if you have ever had an allergic reaction after taking any medicine.
  • Never take more than the prescribed dose. If you suspect that you or someone else has taken an overdose of this medicine go to the accident and emergency department of your local hospital at once. Take the container with you, even if it is empty.
  • If you are having any treatment like an operation or dental treatment tell the person carrying out the treatment which medicines you are taking.
  • Always read the printed information leaflet that comes with your medicine.
  • This medicine is for you. Never give it to other people even if their condition appears to be the same as yours.
  • Never keep out of date or unwanted medicines. Take them to your local pharmacy which will dispose of them for you.
  • If you have any questions about this medicine ask your pharmacist.

References

  • Manufacturer's PIL, Mizollen®, Sanofi-aventis, electronic Medicines Compendium. Dated April 2007, accessed December 2008.
  • British National Formulary; 56th Edition (September 2008) British Medical Association and Royal Pharmaceutical Society of Great Britain, London (link to current BNF).
Comprehensive patient resources are available at www.patient.co.uk
© EMIS 2009DocID: 1082DocRef: dils2077Last Reviewed: 15 Jan 2009Version: 23
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