Package Leaflet: Information for the user
Grazax 75,000 SQ-T lyophilized sublingual
Standardized allergenic extract of grass pollen
Phleum pratense(Timothy grass)
Read this leaflet carefully before you start taking this medicine, becauseit contains important information for you.
-Keep this leaflet, as you may need to read it again.
-If you have any questions, ask your doctor or pharmacist.
-This medicine has been prescribed for you only. Do not give it to others even if they have the same symptoms as you, as it may harm them.
-If you experience any side effects, consult your doctor or pharmacist, even if they are not listed in this leaflet. See section 4.
1. What is Grazax and what it is used for
2. What you need to know before starting to take Grazax
3. How to take Grazax
4. Possible side effects
5. Storage of Grazax
6. Contents of the pack and additional information
Grazax contains an allergenic extract of grass pollen.Grazax is used for the treatment of rhinitis and conjunctivitis caused by grass pollen, in adults and children (5 years of age or older). Grazax modifies the allergic disease by increasing immunological tolerance to grass pollen.
The selection of children who receive treatment should be made by specialist doctors in the treatment of allergic diseases in children.
The doctor will evaluate your allergic symptoms and perform a skin diagnostic test or take a blood sample to decide if Grazax should be used as treatment.
It is recommended to take the first sublingual lyophilisate under medical supervision. This is a precaution aimed at evaluating the sensitivity of each patient to the treatment. This gives you the opportunity to discuss possible adverse effects with the doctor.
Grazax is prescribed by specialist doctors in allergy treatment.
Warnings and precautions:
Consult your doctor before starting to take Grazax
Some side effects may be severe and require immediate medical treatment. Please see section 4 for symptoms.
Children
- Delayed shedding of the first teeth (baby teeth). Treatment with Grazax must be interrupted for 7 days to allow complete healing of the mouth.
If you are in one of these situations, inform your doctor before starting to take Grazax.
There is no experience with Grazax in the elderly (65 years or older).
Other medications and Grazax
Inform your doctor or pharmacist if you are taking or have recently taken other medications, including those purchased without a prescription. If you are taking other medications to treat allergy symptoms, such as antihistamines or corticosteroids, your doctor must evaluate the use of these medications.
Taking Grazax with food and drinks
You must wait 5 minutes after taking the sublingual lyophilisate before consuming food and/or drinks.
Pregnancy, breastfeeding, and fertility
Currently, there is no experience with the use of Grazax during pregnancy. Treatment with Grazax should not be initiated during pregnancy. If you become pregnant during treatment, consult your doctor about the risks of continuing with it.
Currently, there is no experience with the use of Grazax during breastfeeding. No effects are expected in the infants.
Driving and operating machinery
You are the only one responsible for judging your ability to drive or perform precision work. The effects or side effects of the medication may affect this ability. These effects are described in other parts of this prospectus. Therefore, read the entire prospectus for your information.
Consult your doctor or pharmacist if you have doubts.
The influence of treatment with Grazax on the ability to drive or use machinery is negligible or insignificant.
How much Grazax should be taken
How to take Grazax
The first dose of Grazax should be taken in the doctor's consultation.
Continue taking Grazax every day - even if it takes time for your allergy to improve.
If your allergy symptoms do not improve during the first grass pollen season, request a consultation with your doctor to discuss the continuation of treatment.
Make sure your hands are well dry before touching this medication.
Take the sublingual lyophilisates in the following way:
1. Remove the strip marked with triangles at the top of the package.
2. Separate one unit from the package following the discontinuous lines.
3. Fold the corner marked on the aluminum sheet and pull it.
Do not press to remove this medication through the aluminum sheet - it breaks easily.
4. Carefully remove this medication from the unit and place it immediately under your tongue.
5. Keep this medication under your tongue until it dissolves.
If you take more Grazax than you should
If you have taken too many sublingual lyophilisates of Grazax, you may experience allergic symptoms, including local symptoms in the mouth and throat. If you experience severe symptoms, contact your doctor or hospital immediately.
If you forget to take Grazax
In case you forget to take a sublingual lyophilisate, take another as soon as possible on the same day. Do not take a double dose on the same day to compensate for the missed doses.
If you interrupt treatment with Grazax
If you do not take this medication as prescribed by your doctor, the treatment may not be effective. If you have any other doubts about the use of this product, ask your doctor or pharmacist.
Side effects may be an allergic reaction to the allergen being treated. In most cases, side effects have a duration of minutes to hours after taking the sublingual lyophilisate and resolve within a week of starting treatment.
Severe side effects:
Stop taking Grazax and seek immediate medical attention or go to a hospital if you experience any of the following side effects:
If you experience persistent stomach burning, contact your doctor.
Other possible side effects:
Very common (may affect more than 1 in 10 people):
Common (may affect up to 1 in 10 people):
Rare (may affect up to 1 in 100 people):
Rare (may affect up to 1 in 1000 people):
Eye irritation, throat redness, mouth blisters, ear pain, and ear swelling have been reported more frequently in children than in adults.
If you experience bothersome side effects, contact your doctor, who will decide if you need to take antiallergic medications, such as antihistamines.
Reporting side effects
If you experience any type of side effect, consult your doctor or pharmacist, even if it is a possible side effect not listed in this prospectus. You can also report them directly throughthe Spanish System for Pharmacovigilance of Medicines for Human Usewww.notificaRAM.es.
By reporting side effects, you can contribute to providing more information about the safety of this medicine.
Keep this medication out of the sight and reach of children.
Do not use this medication after the expiration date that appears on the blister and on the packaging after CAD. The expiration date is the last day of the month indicated.
This medication does not require special storage conditions.
Medicines should not be disposed of through drains or in the trash. Dispose of the packaging and medications you no longer need at the SIGRE Collection Pointat the pharmacy. If in doubt, ask your pharmacist how to dispose of the packaging and medications you no longer need. By doing so, you will help protect the environment.
Composition of Grazax
The active ingredient is an allergenic extract of grass pollen from Phleum pratense (Timothy Grass), standardized in SQ units. The activity by sublingual lyophilisate is expressed using the SQ-T* unit. The activity of a sublingual lyophilisate is 75,000 SQ-T. The content of the allergen Phl p 5 per sublingual lyophilisate is 6 micrograms.
* (Sublingual lyophilisate in standardized Quality Units (SQ-T).
The other components are gelatin (from fish), mannitol, and sodium hydroxide.
Appearance of Grazax and contents of the packaging
Round sublingual lyophilisate, white or off-white in color, with an engraving on one of the faces.
The sublingual lyophilisates are packaged in an aluminum-aluminum blister with one of the sheets deployable for opening and packaged in a cardboard box. Each blister contains 10 sublingual lyophilisates.
Packaging available: 30 (3x10), 90 (9x10), or 100 (10x10) sublingual lyophilisates.
Not all packaging sizes will be marketed.
Holder of the marketing authorization and responsible for manufacturing
ALK-Abelló A/S
Bøge Allé 6-8
DK-2970 Hørsholm
Denmark
Responsible for manufacturing
ALK-Abelló. S.A.
C/ Miguel Fleta, 19.
28037 – Madrid
Spain
You can request more information about this medication by contacting the local representative of the holder of the marketing authorization:
ALK-Abelló. S.A.
C/ Miguel Fleta, 19.
28037 - Madrid
Date of the last review of this leaflet:2024-12-19
The detailed and updated information about this medication is available on the website of the Spanish Agency for Medicines and Medical Devices (AEMPS) http://www.aemps.gob.es/
The average price of Grazax 75000 sq-t liofilizado sublingual in July, 2025 is around 106.84 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.
Have questions about this medication or your symptoms? Connect with a licensed doctor for guidance and personalized care.