What it is used for
- Allergic rhinitis and conjunctivitis caused by a confirmed allergen when usual medicines are not enough
- Add-on treatment for mild, controlled allergic asthma, as the allergy specialist decides
- Reducing the need for allergy medicines in the long term
How it is used
- Start it only under an allergy specialist; the first dose is often given in the clinic
- Put the drops under the tongue with the pump, hold them there for the time in the leaflet, then swallow
- Follow the build-up schedule with the starting bottle and then the maintenance bottle exactly, without skipping steps
- If you miss several doses, ask your specialist before restarting
Possible side effects
- Itching or swelling in the mouth or under the tongue
- Throat irritation
- Stomach ache or nausea
- A temporary increase in allergy symptoms such as sneezing
- Rarely, a severe allergic reaction
Who should not use it
- Severe or uncontrolled asthma
- Active cancer or severe immune system diseases
- Severe mouth inflammation or ulcers (treatment is paused)
- Allergy to any ingredient other than the intended allergen
Before and while using it
- Breathlessness, difficulty swallowing, throat swelling or a widespread rash need emergency help at once
- Pause it and ask your specialist if you have mouth wounds, a tooth extraction, an acute infection or an asthma attack
- Tell your specialist if your asthma gets worse during treatment
- Benefit builds up gradually and needs long-term use as your specialist decides
Medicine interactions
- Beta-blockers can make a severe allergic reaction harder to treat; tell the allergy specialist about all your medicines
- Tell your specialist if you are having any other allergy immunotherapy
Pregnancy and breastfeeding
- Treatment is not started in pregnancy; if you become pregnant during treatment your specialist decides whether to continue
- Ask your doctor if you are breastfeeding
How to store it
- Keep the bottles in the fridge, do not freeze them, and keep them out of the reach of children
Get medical help straight away if
- Your face, lips or tongue swell, or you find it hard to breathe.
- You get a severe rash, blistering or peeling skin.
- A side effect worries you or doesn’t go away: contact your doctor or pharmacist.
Questions about this medicine?
Talk to a doctor by video, or send your question by text.
Source: Standard international medicine references
This guide is general information and doesn’t replace advice from your doctor or pharmacist. Don’t start, stop or change a medicine without asking them, and always read the leaflet in the pack.