Package Leaflet: Information for the User
Concerta 36 mg prolonged-release tablets
Methylphenidate, hydrochloride
Read the entire package leaflet carefully before you or your child start taking this medicine, as it contains important information for you.
Contents of the package leaflet
What is it used for
Concerta is used to treat “Attention Deficit Hyperactivity Disorder” (ADHD).
Concerta is not indicated for the treatment of ADHD in children under 6 years of age.
How it works
Concerta improves the activity of certain parts of the brain that are underactive. The medication may help improve attention (level of attention), concentration, and reduce impulsive behavior.
The medication is given as part of a comprehensive treatment program, which usually includes:
It is only prescribed by doctors who have experience in behavioral problems in children, adolescents, or adults. If you are an adult and have not received treatment before, the specialist will perform tests to confirm that you have had ADHD since childhood. Although ADHD has no cure, it can be controlled using comprehensive treatment programs.
About ADHD
Children and adolescents with ADHD have difficulty:
It is not their fault that they cannot do these things.
Many children and adolescents struggle to do these things. However, ADHD can cause problems in daily life. Children and adolescents with ADHD may have difficulty learning and doing homework. They have difficulty behaving well at home, at school, and in other places.
Adults with ADHD often have difficulty concentrating. They often feel restless, impatient, and distracted. They may have difficulty organizing their private life and work.
Not all patients with ADHD need treatment with medication.
ADHD does not affect intelligence.
Do not take Concerta if you or your child:
Do not take methylphenidate if you or your child have any of the above. If you are not sure, inform your doctor or pharmacist before you or your child take methylphenidate. This is because methylphenidate may worsen these problems.
Warnings and precautions
Talk to your doctor before starting to take Concerta if you or your child:
Tell your doctor or pharmacist if you or your child have any of the above before starting treatment. This is because methylphenidate may worsen these problems. Your doctor will want to monitor how the medicines affect you or your child.
During treatment, children and adolescents may unexpectedly have prolonged erections. The erections can be painful and occur at any time. It is essential to contact the doctor immediately if the erection lasts more than 2 hours, especially if it is painful.
Checks that your doctor will make before you or your child start treatment with Concerta
To decide if methylphenidate is the right medicine for you or your child, your doctor will talk to you about:
It is essential to provide all the information you can. This will help your doctor decide if methylphenidate is the right medicine for you or your child. Your doctor may decide that you or your child need other medical tests before starting to take this medicine. For adults starting to take Concerta, your doctor may refer you to a cardiologist.
Other medicines and Concerta
Tell your doctor if you or your child are taking, have recently taken, or might take any other medicines.
Do not take methylphenidate if you or your child:
Tell your doctor or pharmacist if you or your child are taking any of the following medicines for depression or anxiety:
Taking methylphenidate with these types of medicines can cause a potentially life-threatening increase in “serotonin” in the brain (serotonin syndrome), which can cause confusion or restlessness, sweating, chills, muscle spasms, or rapid heartbeat. If you or your child experience these side effects, see a doctor immediately.
If you or your child are taking other medicines, methylphenidate may affect how they work or cause side effects. If you or your child are taking any of the following medicines, talk to your doctor or pharmacist before taking methylphenidate:
If you are unsure whether any of the medicines you or your child are taking are included in the list above, talk to your doctor or pharmacist for advice before taking methylphenidate.
Tell your doctor or pharmacist if you or your child are using or have recently used any other medicines, including those bought without a prescription.
Before an operation
Tell your doctor if you or your child are going to have an operation. You should not take methylphenidate on the day of the operation with certain types of anesthetics, as it may cause a sudden increase in blood pressure during the procedure.
Drug tests
This medicine may give a positive result in drug tests, even in tests used in sports.
Concerta with alcohol
Do not drink alcohol while taking this medicine. Alcohol may worsen the side effects of this medicine. Remember that some foods and medicines contain alcohol.
Pregnancy and breastfeeding
If you are pregnant or breastfeeding, think you may be pregnant, or plan to become pregnant, talk to your doctor before using this medicine.
Available data do not suggest an increased risk of total congenital anomalies, although a small increase in the risk of cardiac malformations during use in the first three months of pregnancy could not be ruled out. Your doctor will provide more information about this risk. Talk to your doctor or pharmacist before using methylphenidate if you or your daughter:
Driving and using machines
You or your child may have dizziness, problems focusing, or blurred vision when taking methylphenidate. If this happens, it may be dangerous to perform certain activities such as driving, operating machinery, riding a bicycle or horse, or climbing trees.
Concerta contains lactose
This medicine contains lactose (a type of sugar). If your doctor has told you that you or your child have an intolerance to certain sugars, talk to them before taking this medicine.
Concerta contains sodium
This medicine contains less than 1 mmol of sodium (23 mg) per tablet; this is essentially “sodium-free”.
How much to take
Follow the exact instructions for taking this medicine given by your doctor. If you are unsure, talk to your doctor or pharmacist again.
Your doctor will usually start treatment with a low dose and increase the daily dose by 18 mg no more than once a week if necessary.
The goal should be the lowest dose that is effective for you. Your doctor will decide the maximum daily dose for you or your child.
You or your child should take Concerta once a day in the morning with a glass of water. The tablet should be swallowed whole and not chewed, broken, or crushed. The tablet can be taken with or without food.
The tablet does not dissolve completely after all the medicine has been released, and sometimes the tablet may appear in the stool. This is normal.
Use in children from 6 years of age
Use in adults
For adults who have taken Concerta before:
For adults who have not taken Concerta before:
If you or your child do not feel better after 1 month of treatment
If you or your child do not feel better after 1 month of treatment, tell your doctor. Your doctor may decide that you or your child need a different treatment.
Incorrect use of Concerta
If Concerta is not used correctly, it can cause abnormal behavior. This can also mean that you or your child start to depend on the medicine. Tell your doctor if you or your child have ever abused or been dependent on alcohol, prescription medicines, or drugs.
This medicine is only for you or your child. Do not give this medicine to anyone else, even if they have similar symptoms.
If you or your child take more Concerta than you should
If you or your child take too many tablets, talk to a doctor or go to the nearest hospital emergency department immediately and tell them how many tablets were taken. Medical treatment may be necessary.
You can also contact the Toxicology Information Service, Telephone 91 5620420, stating the medicine and the amount taken. It is recommended to take the packaging and package leaflet of the medicine to the healthcare professional.
Signs of overdose may include: being sick, agitation, tremors, increased uncontrolled movements, muscle contractions, seizures (which can be followed by coma), feeling very happy, confusion, seeing, hearing, or feeling things that are not there (hallucinations), sweating, flushing, headache, high fever, changes in heartbeat (slow, fast, or irregular), high blood pressure, dilated pupils, and dryness of the nose and mouth.
If you or your child forget to take Concerta
Do not take a double dose to make up for forgotten doses. If you or your child forget a dose, wait and take the next dose at the scheduled time.
If you or your child stop taking Concerta
If you or your child suddenly stop taking this medicine, ADHD symptoms may return or unwanted effects such as depression may occur. Your doctor may want to gradually reduce the amount of medicine you or your child take each day before stopping it completely. Talk to your doctor before stopping treatment with Concerta.
What your doctor will do while you or your child are on treatment
Your doctor will perform some tests
Long-term treatment
Concerta does not need to be taken indefinitely. If you or your child take Concerta for more than a year, your doctor should interrupt treatment for a short period, such as during school holidays. This allows your doctor to check if you or your child still need the medicine.
If you have any further questions about the use of this medicine, ask your doctor or pharmacist.
Like all medicines, this medicine can cause adverse effects, although not all people suffer from them. Although some people present adverse effects, most people are helped by methylphenidate. Your doctor will inform you about these adverse effects.
Some adverse effects can be serious. If you or your child have any of the following adverse effects, go to your doctor immediately:
Frequent (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)
Unknown frequency (frequency cannot be estimated from available data)
If you or your child have any of the above adverse effects, go to your doctor immediately.
Other adverse effects are indicated below, and if they become severe, please inform your doctor or pharmacist:
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)
Unknown frequency (frequency cannot be estimated from available data)
Effects on Growth
When used for more than a year, methylphenidate may reduce growth in some children. This affects less than 1 in 10 children.
Reporting of Adverse Effects
If you experience any type of adverse effect, consult your doctor or pharmacist, even if it is a possible adverse effect that is not listed in this leaflet. You can also report them directly through the Spanish Medicines Monitoring System for Human Use: https://www.notificaram.es. By reporting adverse effects, you can contribute to providing more information on the safety of this medicine.
Keep this medicine out of sight and reach of children.
Do not use this medicine after the expiration date shown on the packaging. The expiration date is the last day of the month indicated.
Keep the bottle tightly closed to protect it from moisture. Do not store above 30°C.
The package contains one or two silica gel bags. These bags are used to keep the tablets dry and should not be ingested.
Medicines should not be disposed of via wastewater or household waste. Deposit the packaging and unused medicines at the SIGRE collection point in the pharmacy. Ask your pharmacist how to dispose of the packaging and medicines you no longer need. This will help protect the environment.
Composition of Concerta
The active ingredient is methylphenidate hydrochloride
The other ingredients are:
Appearance of the Product and Package Contents
Concerta is available in 4 doses: 18 milligrams, 27 milligrams, 36 milligrams, and 54 milligrams.
Each capsule-shaped tablet is individually marked for identification:
The medicine is presented in bottles containing 28 or 30 prolonged-release tablets.
Only some pack sizes may be marketed.
Marketing Authorization Holder
Janssen-Cilag, S.A.
Paseo del Club Deportivo 1, Edificio 16
28223 Pozuelo de Alarcón (Madrid)
Spain
Manufacturer
JANSSEN PHARMACEUTICA N.V
Turnhoutseweg 30, 2340
Beerse, Belgium.
This medicine is authorized in the Member States of the European Economic Area and in the United Kingdom (Northern Ireland) under the following names:
Austria Concerta 18 mg, 36 mg & 54 mg Retardtabletten
Belgium Concerta 18 mg, 36 mg & 54 mg tabletten met verlengde afgifte
Bulgaria Concerta 18 mg ???????? ? ???????? ?????????????
Cyprus Concerta 18 mg, 36 mg, 54 mg Δισκ?ο παρατεταμ?νης αποδ?σμευσης
Czech Republic Concerta 18 mg, 36 mg, 54 mg tableta s prodlouženým uvolnováním
Denmark Concerta 18 mg, 36 mg, 54 mg Depottabletter
Estonia Concerta 18 mg, 36 mg, 54 mg toimeainet prolongeeritult vabastav tablett
Finland Concerta 18 mg, 36 mg, 54 mg depottabletit
France Concerta LP 18 mg, 36 mg, 54 mg comprimés à libération prolongée
Germany Concerta 18 mg, 36 mg, 54mg Retardtabletten
Greece Concerta 18 mg, 36 mg, 54 mg Δισκ?ο παρατεταμ?νης αποδ?σμευσης
Iceland Concerta 18 mg, 36 mg & 54 mg forðatöflur
Ireland Concerta XL 18 mg & 36 mg Prolonged-Release Tablets
Lithuania Concerta 18 mg, 36 mg, 54 mg pailginto atpalaidavimo tablete
Luxembourg Concerta 18 mg, 36 mg & 54 mg comprimés à libération prolongée
Malta Concerta 18 mg, 36 mg, 54 mg pilloli b’rilaxx imtawwal
Netherlands Concerta 18 mg, 36 mg & 54 mg tabletten met verlengde afgifte
Norway Concerta 18 mg, 36 mg & 54 mg depottabletter
Poland Concerta 18 mg, 36 mg Tabletka o przedluzonym uwalnianiu
Portugal Concerta 18 mg, 36 mg & 54 mg comprimidos de libertação prolongada
Romania Concerta 18 mg, 36 mg, 54 mg comprimat cu eliberare prelungita
Slovakia Concerta 18 mg, 36 mg, 54 mg Tableta s predlženým uvolnovaním
Slovenia Concerta 18 mg, 36 mg, 54 mg Tablete s podaljšanim sprošcanjem
Spain Concerta 18 mg, 36 mg & 54 mg comprimidos de liberación prolongada
Sweden Concerta 18 mg, 36 mg & 54 mg depottabletter
UK (Northern Ireland) Concerta XL 18mg, 36mg & 54mg Prolonged-Release Tablet
Date of the last revision of this leaflet:November 2024.
Detailed information about 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 CONCERTA 36 mg PROLONGED-RELEASE TABLETS in October, 2025 is around 20.01 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.