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Ilaxten 2.5 mg/ml oral solution – patient leaflet, side effects, dosage

Last updated: · Text from the MHRA, as of · About this document

Medicine status: No longer supplied Details

Medicine strength:
2.5 mg/ml
Contains active substance:
ATC code:

Patient leaflet - Ilaxten 2.5 mg/ml oral solution

1. What Ilaxten is and what it is used for

Ilaxten contains the active substance bilastine which is an antihistamine.

Ilaxten is used to relieve the symptoms of hayfever (sneezing, itchy, runny, blocked-up nose and red and watery eyes) and other forms of allergic rhinitis. It may also be used to treat itchy skin rashes (hives or urticaria).

Ilaxten 2.5 mg/ml oral solution is indicated in children aged 2 to 11 years. with a body weight of at least 15 kg.

2. What you need to know before you use Ilaxten

Do not use Ilaxten:

  • if your child is allergic to bilastine or any of the other ingredients of this medicine (listed in section 6).

Warnings and precautions

Talk to your doctor or pharmacist before using Ilaxten if your child has moderate or severe renal or hepatic impairment, low blood levels of potassium, magnesium, calcium, if your child has or had heart rhythm problems or if the heart rate is very low, if your child is taking medicines that may affect the heart rhythm, if your child has or had a certain abnormal pattern to the heart beat (known as prolongation of the QTc interval on the Electrocardiogram) which can occur in some forms of heart disease or if your child is taking other medicines (see” Other medicines and Ilaxten”).

Children

Do not give this medicine to children under 2 years of age or with a body weight below 15 kg since no sufficient data are available.

Other medicines and Ilaxten

Tell your doctor or pharmacist if your child is taking, has recently taken or might take any other medicines, including medicines obtained without a prescription. Some medicines should not be taken together and others may need their doses to be altered when taken together.

Always inform your doctor or pharmacist if your child is using or receiving any of the following medicines in addition to Ilaxten:

  • Ketoconazole (an antifungal medicine)
  • Erythromycin (an antibiotic)
  • Diltiazem (to treat angina pectoris – pain or tightness in the chest area)
  • Cyclosporine (to reduce the activity of your immune system, thus avoiding transplant rejection or reducing disease activity in autoimmune and allergic disorders, such as psoriasis, atopic dermatitis or rheumatoid arthritis)
  • Ritonavir (to treat HIV)
  • Rifampicin (an antibiotic)

Ilaxten with food, drink and alcohol

The oral solution should not be taken with food or with grapefruit juice or other fruit juices, as this will decrease the effect of bilastine. To avoid this, you can:

  • give your child the oral solution and wait for one hour before your child takes food or fruit juice or
  • if your child has taken food or fruit juice, wait for two hours before giving him the oral solution.

Bilastine, at the dose recommended in adults (20 mg), does not increase the drowsiness produced by alcohol.

Pregnancy, breast-feeding and fertility

This medicine is for use in children from 2 to 11 years of age with a body weight of at least 15 kg. However, the following information should be noted regarding the safe use of this medicine. There are no or limited amount of data from the use of bilastine in pregnant women and during breast-feeding and on the effects on fertility.

In case of pregnancy or breast-feeding, or when planning to have a baby, it is recommended to ask to the doctor for advice before taking this medicine.

Ask your doctor or pharmacist for advice before taking any medicine.

Driving and using machines

It has been demonstrated that bilastine 20 mg does not affect the driving performance in adults. However the response from each patient to the medicine may be different. Therefore you should check how this medicine affects your child, before you let your child ride bicycles or drive other vehicles or operate machinery.

Ilaxten contains methyl parahydroxybenzoate (E218) and propyl parahydroxybenzoate (E216) which may cause allergic reactions (possibly delayed).

Ilaxten contains ethanol and sodium

This medicine contains to 0.44 mg of alcohol (ethanol) in each dose (4 mL) which is equivalent to 11 mg/100 mL (0.011% w/v). The amount in 4mL of this medicine is equivalent to less than 0.02 ml beer or 0.005 ml wine.

The small amount of alcohol in this medicine will not have any noticeable effects.

This medicine contains less than 1 mmol sodium (23 mg) per 4 ml, that is to say essentially ‘sodium free’.

3. How to take Ilaxten

Always use this medicine exactly as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure.

Use in children

The recommended dose in children 2 to 11 years of age with a body weight of at least 15 kg is 10 mg bilastine (4 ml of oral solution) once daily for the relief of symptoms of allergic rhinoconjunctivitis and urticaria.

Do not give this medicine to children under 2 years of age or with a body weight below 15 kg since no sufficient data are available.

For adults, including elderly and adolescents aged 12 years and over, the recommended dose is 20 mg bilastine once daily. For this patient population a more appropriate dosage form - tablet- is available, ask your doctor or pharmacist.

  • The oral solution is for oral use
  • The bottle of oral solution is provided with a child-proof cap and must be opened as follows: press the plastic screw-cap downwards and turn anti-clockwise at the same time
  • The oral solution is accompanied by a cup for dosage with a mark of 4 ml (= 10 mg bilastine per dosing), which will help you to dose the oral solution correctly
  • Fill the cup with 4 ml of oral solution
  • Administer directly from the cup
  • Wash the cup after use
  • You should give the oral solution to your child one hour before or two hours after your child has taken any food or fruit juice.

As the duration of treatment depends on your child’s underlying disease, your physician will determine for how long your child should take Ilaxten.

If you use more Ilaxten than you should

If your child, or anyone else, use too much of this medicine, tell your doctor immediately or go to the emergency department of your nearest hospital. Please remember to take this medicine pack or this leaflet with you.

If you forget to use Ilaxten

If you forget to give your child the daily dose on time, give it on the same day as soon as you remember. Then, give the next dose on the next day at the usual time as prescribed by the doctor.

In any case, do not give a double dose to make up for a forgotten one.

If you stop using Ilaxten

Generally, there will be no after-effects when treatment with Ilaxten is stopped.

If you have any further questions on the use of this medicine, ask your doctor or pharmacist.

4. Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.

If your child experiences symptoms of an allergic reaction the signs of which may include difficulty in breathing, dizziness, collapsing or losing consciousness, swelling of the face, lips, tongue or throat, and/or swelling and redness of the skin, stop giving the medicine and seek urgent medical advice straight away.

Other side effects that may be experienced in children are:

Common: may affect up to 1 in 10 people

  • allergic conjunctivitis (eye irritation)
  • headache

Uncommon: may affect up to 1 in 100 people

  • eye irritation
  • dizziness
  • loss of consciousness
  • diarrhoea
  • nausea (the feeling of being sick)
  • lip swelling
  • eczema
  • urticaria (hives)
  • fatigue
  • rhinitis (nasal irritation)
  • stomach pain (abdominal / upper abdominal pain)

Side effects that may be experienced in adults and adolescents are:

Common: may affect up to 1 in 10 people

  • headache
  • drowsiness

Uncommon: may affect up to 1 in 100 people

  • abnormal ECG heart tracing
  • blood tests which show changes in the way the liver is working
  • dizziness
  • stomach pain
  • tiredness
  • increased appetite
  • irregular heartbeat
  • increased weight
  • nausea (the feeling of being sick)
  • anxiety
  • dry or uncomfortable nose
  • belly pain
  • diarrhoea
  • gastritis (inflammation of the stomach wall)
  • vertigo (a feeling of dizziness or spinning)
  • feeling of weakness
  • thirst
  • dyspnoea (difficulty in breathing)
  • dry mouth
  • indigestion
  • itching
  • cold sores (oral herpes)
  • fever
  • tinnitus (ringing in the ears)
  • difficulty in sleeping
  • blood tests which show changes in the way kidney is working
  • blood fats increased

Frequency not known: cannot be estimated from the available data

  • palpitations (feeling your heart beat)
  • tachycardia (fast heart beat)
  • vomiting

Reporting of side effects

If your child gets any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects you can help provide more information on the safety of this medicine.

5. How to store Ilaxten

Keep this medicine out of the sight and reach of children.

Do not use this medicine after the expiry date which is stated on the carton and the bottle after EXP. The expiry date refers to the last day of that month.

Do not store above 30 °C

The shelf life after first opening is 6 months.

Do not use this medicine if you notice any visible signs of particles.

Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.

6. Contents of the pack and other information

What Ilaxten contains

  • The active substance is bilastine. One milliliter of the oral solution contains 2.5 mg of bilastine.
  • The other ingredients are Betadex (E459), Hydroxyethylcellulose, Methyl parahydroxybenzoate (E218), Propyl parahydroxybenzoate (E216), Sucralose (E955), Raspberry flavour (major components: ethanol, triacetin, water, ethyl butyrate, linalyl acetate), Hydrochloric acid 37% or 10% (for pH-adjustment), Sodium hydroxide (for pH-adjustment), Water, purified

What Ilaxten looks like and contents of the pack

Ilaxten oral solution is a clear, colourless, slightly viscous aqueous solution of pH 3.0-4.0, without precipitate.

Ilaxten 2.5 mg/ml oral solution is packaged in an amber glass bottle, sealed with an aluminium screw cap or with a polypropylene child-resistant cap, including a 15 or 25 ml cup for dosage with a mark of 4 ml. Each bottle contains 120 ml of oral solution.

Marketing Authorisation Holder and Manufacturer

Marketing Authorisation Holder

Menarini International Operations Luxembourg S.A.

1, Avenue de la Gare

L-1611, Luxembourg

Manufacturer

Faes Farma, S.A.

Parque Científico y Tecnológico de Bizkaia,

Ibaizabal Bidea, Edificio 901,

48160 Derio (Bizkaia)

Spain

Berlin Chemie AG,

Glienicker Weg 125, 12489 Berlin,

Germany

This leaflet was last revised in 05/2025.

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PL 16239/0045

Last revision stated in the text: May 2025 · MHRA data as of 13 October 2026

Found a mistake? Tell us on the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Facts about Ilaxten 2.5 mg/ml oral solution

Active substance Bilastine
Strength 2.5 mg/ml
Pharmaceutical form Oral solution
How is it taken Oral
Is it available? No, all its packs are listed as discontinued (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Drug group (ATC)
  1. R Respiratory system drugs
    1. R06 Antihistamines for systemic use
      1. R06A Antihistamines for systemic use
        1. R06AX Other antihistamines for systemic use
          1. R06AX29 bilastine
Marketing authorisation PL 16239/0045
Codes BNF 03040100

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 10.1.0 of 12 October 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.