


Ask a doctor about a prescription for CRISOMET 25 mg CHEWABLE/DISPERSIBLE TABLETS
Package Leaflet: Information for the User
Crisomet 25 mg Chewable/Dispersible Tablets
lamotrigine
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the pack
Crisomet belongs to a group of medicines called antiepileptics. It can be used for the treatment of two conditions: epilepsy and bipolar disorder.
Crisomet is used for the treatment of epilepsy becauseit blocks the signals in the brain that trigger epileptic seizures (attacks).
Crisomet is also used for the treatment of bipolar disorder.
People with bipolar disorder (previously called manic-depressive disorder) have extreme mood swings, with periods of mania (excitement or euphoria) alternating with periods of depression (deep sadness or despair). In adults aged 18 years and over, Crisomet can be used to prevent the periods of depression that occur in bipolar disorder, either alone or in combination with other medicines. It is not known how Crisomet works in the brain to have this effect.
Do not take Crisomet:
If this applies to you:
? Tell your doctorand do not take Crisomet.
Warnings and precautions
Be careful with Crisomet
Consult your doctor or pharmacist before startingto take Crisomet:
If this applies to you:
? Tell your doctor, who will decide to reduce the dose or determine that Crisomet is not suitable for you.
Important information about reactions that can potentially be life-threatening
A small number of people who take Crisomet have allergic reactions or skin reactions that can potentially be life-threatening, which can lead to more serious problems if not treated. These reactions can include Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and drug reaction with eosinophilia and systemic symptoms (DRESS). You need to know the symptoms of these reactions and be aware of them while taking Crisomet. This risk may be associated with a genetic variant in people of Asian origin (mainly Chinese Han and Thai). If you are of such origin and have been detected with this genetic variant (HLA-B*1502), talk to your doctor before taking Crisomet.
? Read the description of these symptoms in section 4 of this leaflet"Reactions that can potentially be life-threatening: consult your doctor immediately".
Hemophagocytic lymphohistiocytosis (HLH)
There have been reports of a rare but very serious reaction of the immune system in patients taking lamotrigine.
Thoughts of self-harm or suicide
Antiepileptic medicines are used to treat different conditions, including epilepsy and bipolar disorder. People with bipolar disorder may sometimes have thoughts of self-harm or suicide. If you have bipolar disorder, you may be more likely to have these thoughts in the following situations:
If you have thoughts or experiences that worry you, or if you notice that you feel worse or develop new symptoms while taking Crisomet:
? Consult your doctor as soon as possible or go to the nearest hospital.
It may be helpful for you to tell a family member, caregiver, or close friend that you can get depressed or have significant mood changes, and ask them to read this leaflet. You can ask them to tell you if they are worried about your depression or other changes in your behavior.
A small number of people who have been treated with antiepileptics such as Crisomet have also had thoughts of self-harm or suicide. If you have these thoughts at any time, contact your doctor immediately.
If you are taking Crisomet for epilepsy
Seizures in some types of epilepsy may occasionally worsen or occur more often while you are taking Crisomet. Some patients may experience severe seizures, which can cause serious health problems. If seizures occur more often or if you experience severe seizures while taking Crisomet:
? Go to a doctor immediately.
Crisomet must not be given to children under 18 years for the treatment of bipolar disorder. Medicines for the treatment of depression and other mental health problems increase the risk of thoughts and behaviors of suicide in children and adolescents under 18 years.
Other medicines and Crisomet
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines, including herbal medicines or other medicines that you buy without a prescription.
Your doctor needs to know if you are taking other medicines for the treatment of epilepsy or mental health problems. This is to make sure you take the correct dose of Crisomet. These medicines include:
? Tell your doctorif you are using any of these medicines.
Some medicines interact with Crisomet or make it more likely that people have side effects. These include:
? Tell your doctorif you are using any of these medicines, or if you start or stop using any of these medicines.
Hormonal contraceptives (such as the pill) can affect how Crisomet works.
Your doctor may recommend that you use a specific hormonal contraceptive or that you use another method of contraception, such as condoms, diaphragm, or IUD. If you are taking a hormonal contraceptive, such as the pill, your doctor may perform a blood test to check the levels of Crisomet. If you are using a hormonal contraceptive or plan to start using one:
? Consult your doctor, as they will indicate which contraceptive methods are most suitable for you.
Crisomet can also affect how hormonal contraceptives work, although it is unlikely to reduce their effectiveness. If you are using a hormonal contraceptive and notice changes in your menstrual cycle, such as intermenstrual bleeding or spotting:
? Tell your doctor. These may be signs that Crisomet is affecting how your contraceptive works.
Pregnancy and breastfeeding
? If you are pregnant, think you may be pregnant or are planning to have a baby, consult your doctor or pharmacist before using this medicine.
? If you are breastfeeding or plan to breastfeed, consult your doctor or pharmacist before using this medicine.The active ingredient of Crisomet passes into breast milk and may affect your baby. Your doctor will discuss the risks and benefits of breastfeeding while taking Crisomet and will perform regular checks on your baby if you decide to breastfeed, as they may experience drowsiness, rash, or poor weight gain. Tell your doctor if you notice any of these symptoms in your baby.
Driving and using machines
Crisomet can cause dizziness and double vision.
? Do not drive or use machines unless you are sure you do not feel these effects.
If you have epilepsy, consult your doctor about the possibility of driving or using machines.
Important information about some of the ingredients of Crisomet
This medicine contains less than 1 mmol of sodium (23 mg) per tablet; this is, essentially "sodium-free".
Follow the administration instructions for this medication exactly as indicated by your doctor or pharmacist.In case of doubt, consult your doctor or pharmacist again.
What dose of Crisomet to take
It may take some time for your doctor to find the most suitable dose of Crisomet for you. The dose you should take will depend on:
Your doctor will prescribe a low dose at the start of treatment and, gradually, increase the dose over several weeks until reaching the most suitable dose for you (called the effective dose). Never take more Crisomet than your doctor has indicated.
Normally, the effective dose of Crisomet for adults and children 13 years of age and older is between 100 mg and 400 mg per day.
For children between 2 and 12 years of age, the effective dose depends on their body weight, normally between 1 mg and 15 mg per kilogram of the child's weight, up to a maximum maintenance dose of 200 mg per day.
Crisomet is not recommended for use in children under 2 years of age.
How to take the dose of Crisomet
Take your dose of Crisomet once or twice a day, as advised by your doctor. They can be taken with or without food.
Your doctor may advise you to start or stop taking other medications, depending on the problem being treated and how you respond to treatment.
Crisomet chewable/dispersible tablets can be swallowed whole with a little water, chewed, or added to water to dissolve. Never take only part of the liquid.
To remove a tablet:
These tablets come in a special package to prevent children from removing them.
Each unit of the blister pack has a number. Take each tablet in order, starting with tablet number 1.



Chewing the tablet:
You may need to drink a little water to help the tablet dissolve in your mouth when chewing it. After swallowing, drink a little more water to make sure you have taken all the medication.
To dissolve the medication:
If you take more Crisomet than you should
?In case of overdose or accidental ingestion, contact your doctor, pharmacist, or call the Toxicology Information Service, phone: 91 562 04 20, indicating the medication and the amount ingested.
If you take more Crisomet than you should, you may be more prone to having serious adverse effects that can be fatal.
Someone who has taken too much Crisomet may have some of these symptoms:
If you forget to takea dose ofCrisomet
?Do not take a double dose to make up for forgotten doses.Takethe next dose at the usual time.
In case of forgetting to take multiple doses of Crisomet
?Ask your doctor for advice on how to start treatment again. It is important that you do this.
Do not stop taking Crisomet without your doctor's advice
You should take Crisomet for as long as your doctor recommends. Do not stop taking it unless your doctor advises you to do so.
If you are taking Crisomet for the treatment of epilepsy
To stop taking Crisomet, it is important that the dose is gradually reduced, over approximately 2 weeks. If you stop taking Crisomet suddenly, you may experience a return of epilepsy symptoms or the disease may worsen.
If you are taking Crisomet for bipolar disorder
Crisomet may take some time to work, so it is unlikely that you will feel better immediately. If you stop taking Crisomet, you do not need to gradually reduce your dose. However, before interrupting treatment with Crisomet, you should consult your doctor.
Like all medications, this medication can cause side effects, although not everyone will experience them.
Reactions that can potentially be life-threatening:consult your doctor immediately.
A small number of people taking Crisomet have allergic reactions or skin reactions that can potentially be life-threatening, which can lead to more serious problems if not treated.
It is more likely that these symptoms will appear during the first few months of treatment with Crisomet, especially if the initial dose is very high or if the dose increase is very rapid, or if you are taking Crisomet with another medication called valproate. Some of these symptoms are more frequent in children, so parents should pay special attention to them.
The symptoms of these reactions include:
In many cases, these symptoms can be signs of less serious adverse effects. However, you should be aware that they can potentially be life-threateningand can lead to more serious problems, such as organ failure, if not treated. If you notice any of these symptoms:
?Contact your doctor immediately. Your doctor will decide if you need to undergo tests to assess liver, kidney, or blood function and may indicate that you should stop treatment with Crisomet. If you have developed Stevens-Johnson syndrome or toxic epidermal necrolysis, your doctor will indicate that you should never take lamotrigine again.
Hemophagocytic Lymphohistiocytosis (HLH)(see section 2. What you need to know before taking Crisomet).
Very common side effects
These affect more than 1 in 10people:
Common side effects
These affect up to 1 in 10people:
Uncommon side effects
These can affect up to 1 in 100people:
Rare side effects
These affect up to 1 in 1,000people:
This can be caused by inflammation of the membranes covering the brain and spinal cord (meningitis). These symptoms usually disappear when treatment is discontinued. However, if the symptoms continue or worsen, contact your doctor
Very rare side effects
These affect up to 1 in 10,000people:
Other side effects
Other side effects have appeared in a small number of people, but their exact frequency is unknown:
Reporting side effects
If you experience any side effects, consult your doctor or pharmacist, even if they are possible side effects not listed in this leaflet. You can also report them directly through the Spanish Medication Surveillance System for Human Use: www.notificaRAM.es. By reporting side effects, you can contribute to providing more information on the safety of this medication.
Keep this medication out of sight and reach of children.
Do not use this medication after the expiration date shown on the blister pack, carton, or bottle. The expiration date is the last day of the month indicated.
Crisomet does not require special storage conditions.
Medications should not be disposed of through wastewater or household waste. Deposit the packaging and unused medications at the SIGRE collection point in the pharmacy. If in doubt, ask your pharmacist how to dispose of the packaging and unused medications. This will help protect the environment.
Composition of Crisomet 25 mg chewable/dispersible tablets
The active ingredient is lamotrigine. Each chewable/dispersible tablet contains 25 mg of lamotrigine.
The other ingredients are: calcium carbonate, low-substituted hydroxypropylcellulose, aluminum and magnesium silicate, sodium carboxymethyl starch (Type A) of potato, povidone K30, sodium saccharin, magnesium stearate, blackcurrant flavor.
Appearance of the product and package contents of Crisomet chewable/dispersible tablets
Crisomet chewable/dispersible tablets are white to off-white and may be slightly speckled. The tablets have a blackcurrant flavor.
Crisomet 25 mg chewable/dispersible tablets are square with rounded corners. The tablets show the legend “GSCL5” engraved on one face and the legend “25” on the other face. Each package contains blister packs of 56 tablets.
Marketing authorization holder and manufacturer
Marketing authorization holder:
GlaxoSmithKline, S.A.
P.T.M. C/ Severo Ochoa, 2
28760 Tres Cantos (Madrid)
Tel: +34 900 202 700
Manufacturer:
Delpharm Poznan Spólka Akcyjna
ul. Grunwaldzka 189
60-322 Poznan
Poland
Date of the last revision of this leaflet:April 2024.
Detailed and updated information on 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 CRISOMET 25 mg CHEWABLE/DISPERSIBLE TABLETS in November, 2025 is around 6.59 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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