


Ask a doctor about a prescription for TIRBAS 500 mg FILM-COATED TABLETS
Package Leaflet: Information for the Patient
Tirbas 250 mg Film-Coated Tablets EFG
Tirbas 500 mg Film-Coated Tablets EFG
Tirbas 1000 mg Film-Coated Tablets EFG
Levetiracetam
Read the entire package leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the package leaflet
Tirbas (levetiracetam) is an antiepileptic medicine (a medicine used to treat seizures in epilepsy).
Levetiracetam is used:
primary generalised tonic-clonic seizures (major seizures, including loss of consciousness) in adults and adolescents from 12 years of age with idiopathic generalised epilepsy (a type of epilepsy that is thought to have a genetic cause).
Do not take Tirbas
Warnings and precautions
Consult your doctor or pharmacist before starting this medicine.
Tell your doctor or pharmacist if any of the following side effects get worse or last more than a few days:
Rarely, epileptic seizures may worsen or occur more frequently, mainly during the first month after starting treatment or increasing the dose.
In a very rare form of early-onset epilepsy (epilepsy associated with SCN8A mutations) that causes multiple types of epileptic seizures and loss of skills, you may notice that seizures persist or worsen during treatment.
If you experience any of these new symptoms while taking levetiracetam, see a doctor as soon as possible.
Children and adolescents
Monotherapy with levetiracetam is not indicated in children and adolescents under 16 years of age.
Taking Tirbas with other medicines
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.
Do not take macrogol (a medicine used as a laxative) for 1 hour before and 1 hour after taking levetiracetam, as it may lose its effect.
Pregnancy and breastfeeding
If you are pregnant or breastfeeding, think you may be pregnant or are planning to have a baby, ask your doctor for advice before taking this medicine.
Levetiracetam can only be used during pregnancy if, after careful evaluation, your doctor considers it necessary.
Do not stop your treatment without discussing it with your doctor,
The risk of birth defects for the baby cannot be completely excluded.
Breastfeeding is not recommended during treatment.
Driving and using machines
Levetiracetam may affect your ability to drive or use tools or machines, as it may cause drowsiness. This is more likely at the start of treatment or when the dose is increased. You should not drive or use machinery until it is established that your ability to perform these activities is not affected.
Tirbas contains sodium
This medicine contains less than 23 mg of sodium (1 mmol) per tablet; this is essentially “sodium-free”.
Follow exactly the instructions for administration of this medicine given by your doctor or pharmacist. In case of doubt, consult your doctor or pharmacist again.
Take the number of tablets that your doctor has prescribed for you.
Levetiracetam should be taken twice daily, once in the morning and once in the evening, approximately at the same time every day.
Concomitant therapy and monotherapy (from 16 years of age)
Adults(≥18 years)and adolescents (from 12 to 17 years)with a weight of 50 kg or more:
Recommended dose: between 1,000 mg and 3,000 mg per day.
When starting levetiracetam, your doctor will prescribe a lower dosefor two weeks before giving you the lowest daily dose.
For example: for a daily dose of 1,000 mg, the reduced starting dose is 1 tablet of 250 mg in the morning and 1 tablet of 250 mg in the eveningand the dose should be gradually increased to 1,000 mg per day after 2 weeks of treatment.
Adolescents (from12 to17 years) with a weight of 50 kg or less:
Your doctor will prescribe the most suitable pharmaceutical form of Levetiracetam according to weight and dose.
Dose in infants (from 1 month to 23 months) and children (from2 to11 years) with a weight below 50 kg.
Your doctor will prescribe the most suitable pharmaceutical form of levetiracetam according to age, weight, and dose.
Levetiracetam 100 mg/ml oral solution is a more suitable formulation for infants and children under 6 years of age and for children and adolescents (from 6 to 17 years) with a weight below 50 kg and when tablets do not allow for precise dosing.
Method of administration
Swallow the levetiracetam tablets with a sufficient amount of liquid (e.g., a glass of water). You can take levetiracetam with or without food. After oral administration of levetiracetam, a bitter taste may be noticed.
Duration of treatment
If you take more Tirbas than you should
In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or call the Toxicology Information Service, telephone: 91 562 04 20, indicating the medicine and the amount taken.
The possible side effects of a levetiracetam overdose are drowsiness, agitation, aggression, decreased alertness, respiratory depression, and coma.
Contact your doctor if you have taken more tablets than you should. Your doctor will establish the best possible treatment for the overdose.
If you forget to take Tirbas
Contact your doctor if you have missed one or more doses. Do not take a double dose to make up for forgotten doses.
If you stop taking Tirbas
Stopping treatment with levetiracetam should be done gradually to avoid an increase in seizures. If your doctor decides to stop your treatment with levetiracetam, he/she will give you instructions for the gradual withdrawal of levetiracetam.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Tell your doctor immediately, or go to the casualty department of your nearest hospital if you experience:
The most frequently reported side effects are nasopharyngitis, somnolence (feeling drowsy), headache, fatigue, and dizziness. Side effects such as drowsiness, weakness, and dizziness may be more frequent when starting treatment or increasing the dose. However, these side effects should decrease over time.
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
Very rare: may affect up to 1 in 10,000 people
Reporting of side effects
If you experience any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this package leaflet. You can also report side effects directly via the Spanish Medicines Monitoring System for Human Use: https://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
This medicine does not require any special storage conditions.
Do not use this medicine after the expiry date which is stated on the carton after EXP. The expiry date refers to the last day of the month shown.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help to protect the environment.
Composition of Tirbas
Core of the tablet: microcrystalline cellulose, sodium croscarmellose, anhydrous colloidal silica, macrogol 6000, magnesium stearate.
Coating: hypromellose, titanium dioxide (E171), glycerol triacetate, and purified water.
Appearance and packaging
Tirbas 250 mg are white, round, biconvex, and scored tablets.
The pack contains 60 film-coated tablets.
Tirbas 500 mg are white, oblong, and scored tablets.
The pack contains 60 or 100 tablets.
Tirbas 1000 mg are white, oblong, and scored tablets.
The pack contains 30 or 60 tablets.
Each tablet can be divided into equal doses.
Not all pack sizes may be marketed.
Marketing authorisation holder and manufacturer
Laboratorios Alter, S.A.
C/ Mateo Inurria, 30
28036 Madrid
Spain
or
Laboratorios Alter, S.A.
C/ Zeus, 6
Polígono Industrial R2
28880 Meco (Madrid)
Spain
Date of last revision of this package leaflet: July 2023
Detailed and up-to-date information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/
The average price of TIRBAS 500 mg FILM-COATED TABLETS in November, 2025 is around 90.89 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.
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