Patient Information Leaflet
Actair 100IR & 300IR sublingual tablets
For use in adolescents and adults (from 12 to 65years old)
Standardized allergen extracts from house dust mites
(Dermatophagoides pteronyssinusand Dermatophagoides farinae)
This medication is subject to additional monitoring, which will speed up the detection of new information on its safety. You can contribute by reporting any side effects you may have. The last part of section 4 includes information on how to report side effects.
Read the entire leaflet carefully before starting to take this medication, as it contains important information for you.
Contents of the leaflet
This medication contains allergen extracts from house dust mites.
This medication is used to treat allergic rhinitis (inflammation of the nasal mucosa) in adolescents (12-17 years old) and adults. This medication works by increasing immune tolerance to house dust mites (i.e., the body's ability to cope with their presence). You may not notice an improvement until you have been taking the treatment for 3 months.
Actair 100 IR is indicated only for the dose escalation period and not for maintenance.
Before starting treatment, a doctor must diagnose your allergy through skin tests and appropriate blood tests.
The first dose of this medication should be taken under medical supervision. You should remain under medical observation for at least half an hour after taking the tablet. This is a precaution to monitor your sensitivity to the medication. It will also give you the opportunity to discuss any possible side effects with your doctor.
This medication should only be prescribed by a doctor with experience in treating allergies.
Do not take Actair
Do not start taking this medication if you are pregnant.
Warnings and precautions
Consult your doctor or pharmacist before starting to take this medication:
Tell your doctor:
Do not stop taking your asthma control and/or relief medications without your doctor's advice, as this may worsen your asthma symptoms.
During treatment, it is expected that some localized allergic reactions of mild or moderate intensity will occur. If the reactions are severe, talk to your doctor to determine if you need any antiallergic medication, such as antihistamines.
Children and adolescents
This medication is used to treat allergic rhinitis in adolescents (12-17 years old). This medication should not be used in children under 12 years old.
Other medications and Actair
Tell your doctor or pharmacist if you are taking, have recently taken, or may need to take any other medication, including those without a prescription. If you are taking other medications for allergies, such as antihistamines, asthma medications, or steroids, or a medication that blocks a substance called immunoglobulin E (IgE), such as omalizumab, talk to your doctor about whether you should continue taking them. If you stop taking your allergy medications, you may experience more side effects during treatment with this medication.
Using Actair with food and drinks
Do not consume food or drinks in the 5 minutes after taking this medication.
Pregnancy and breastfeeding
If you are pregnant or breastfeeding, think you may be pregnant, or plan to become pregnant, consult your doctor or pharmacist before using this medication.
There is no experience with the use of this medication during pregnancy. Therefore, you should not start treatment with this medication if you are pregnant. If you become pregnant while taking this medication, consult your doctor about whether it is appropriate to continue treatment.
There is no experience with the use of this medication during breastfeeding. However, no effects on breastfed infants are expected. Consult your doctor to determine if it is appropriate to continue treatment with this medication during breastfeeding.
Driving and using machines
No effects of this medication on the ability to drive or use machines have been observed.
Actair contains lactose
This medication contains lactose. If your doctor has told you that you have an intolerance to certain sugars, consult with them before taking this medication.
Actair contains sodium
This medication contains less than 23 mg of sodium (1 mmol) per tablet; it is essentially "sodium-free".
Follow your doctor's instructions for taking this medication exactly. If you are unsure, consult your doctor or pharmacist again.
The treatment includes a starting phase (progressive dose increase over a period of 3 days) and a maintenance phase.
Starting treatment
Treatment with this medication should be started as follows:
Day 1 | 1 tablet of 100 IR |
Day 2 | 2 tablets of 100 IR at the same time |
From day 3 onwards | 1 tablet of 300 IR |
The IR (Reactivity Index) expresses the activity.
Actair 100 IR is indicated only for the dose escalation period and not for maintenance.
Maintenance treatment
The dose is 300 IR (one tablet) per day.
Use inadolescents
The administration schedule in adolescents is the same as in adults.
Take this medication as follows:
If you take more Actair than you should
If you take more medication than you should, you may experience allergic symptoms such as localized symptoms in the mouth and throat. If you experience severe symptoms, contact a doctor or hospital immediately.
If you forget to take Actair
If you have forgotten to take a tablet, take it later during the day. Do not take a double dose to make up for forgotten doses. If you have not taken this medication for more than 7 days, contact your doctor before taking it again.
If you stop taking Actair
If you do not take this medication as directed by your doctor, you may not get the beneficial effects of the treatment. If you have any other questions about the use of this medication, ask your doctor or pharmacist.
Like all medications, this medication can cause side effects, although not everyone will experience them.
Side effects can be an allergic reaction to the allergen being treated. Most side effects last from minutes to hours after taking the medication and will disappear when you have been treated for 1 to 3 months.
Stop taking this medication and contact your doctor or hospital immediately if you experience any of the following symptoms:
Other possible side effects:
Very common (may affect more than 1 in 10 people):
Common (may affect up to 1 in 10 people):
Uncommon (may affect up to 1 in 100 people):
Rare (may affect up to 1 in 1,000 people):
If you are concerned about any side effect, consult your doctor to decide if you need to take any medication, such as antihistamines, for relief.
Reporting side effects
If you experience any side effects, consult your doctor or pharmacist, even if they are not listed in this leaflet. You can also report them directly through the Spanish Medication Monitoring System for Human Use: https://www.notificaram.es. By reporting side effects, you can contribute to providing more information on the safety of this medication.
This medication does not require special storage conditions.
Keep this medication out of sight and reach of children.
Do not use this medication after the expiration date stated on the label after CAD/EXP. The expiration date is the last day of the month indicated.
Medications should not be disposed of through wastewater or household waste. Deposit the packaging and medications you no longer need at the SIGRE collection point in your pharmacy. If you have any questions, ask your pharmacist how to dispose of the packaging and medications you no longer need. This will help protect the environment.
Composition of Actair
The IR (Reactivity Index) expresses the activity.
Appearance of the product and package contents
Sublingual tablet.
The 100 IR tablets are white to beige, round, and biconvex, with brown speckles and "SAC" engraved on one side and "100" engraved on the other.
The 300 IR tablets are white to beige, round, and biconvex, with brown speckles and "SAC" engraved on one side and "300" engraved on the other.
The tablets are supplied in aluminum blisters sealed with a separable aluminum foil and in a cardboard box.
Package sizes: package of 3 sublingual tablets of 100 IR and 28 sublingual tablets of 300 IR
Marketing authorization holder and manufacturer
Stallergenes
Rue Alexis de Tocqueville, 6
92160 Antony
France
You can request more information about this medication from the local representative of the marketing authorization holder:
Stallergenes Ibérica S.A.
Llacuna, 22 – 2º 1ª
08005 – Barcelona
Spain
This medication is authorized in the member states of the European Economic Areaand in the UnitedKingdom (Northern Ireland)with the following names:
Austria Actair 100 IR + 300 IR Sublingualtabletten
Belgium Orylmyte 100 IR & 300 IR comprimés sublinguaux
Bulgaria ?????? 100 IR ? 300 IR ???????????? ????????
Croatia Orylmyte 100 IR i 300 IR sublingvalne tablete
Czech Republic, Poland, Portugal, Romania ACTAIR
Denmark, Norway, Sweden Aitmyte
France Orylmyte 100 IR, comprimé sublingual
Orylmyte 300 IR, comprimé sublingual
Germany ORYLMYTE 100 IR & 300 IR
Ireland, United Kingdom (Northern Ireland) ACTAIR 100 IR & 300 IR sublingual tablets
Italy, Luxembourg ORYLMYTE
Netherlands Actair 100 IR en 300 IR, tabletten voor sublinguaal gebruik
Slovenia Actair 100 IR in 300 IR podjezicne tablete
Slovakia ACTAIR 100 IR sublingválne tablety, ACTAIR 300 IR sublingválne tablety
Spain Actair 100 IR & 300 IR comprimidos sublinguales
Date of the last revision of this leaflet: January 2023
Detailed information about this medication is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/
The average price of ACTAIR 100 IR & 300 IR SUBLINGUAL TABLETS in October, 2025 is around 98.82 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.