
Ask a doctor about a prescription for METHYLPHENIDATE VIATRIS 18 mg PROLONGED-RELEASE TABLETS
Package Leaflet: Information for the Patient
Methylphenidate Viatris 18 mg prolonged-release tablets EFG
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 it is used for
Methylphenidate Viatris is used to treat “Attention Deficit Hyperactivity Disorder” (ADHD).
Methylphenidate Viatris is not indicated for the treatment of ADHD in children under 6 years of age.
How it works
Methylphenidate Viatris improves the activity of certain parts of the brain that are underactive. The medicine may help improve attention (level of attention), concentration, and reduce impulsive behavior.
The medicine is given as part of a comprehensive treatment program, which usually includes therapy:
It is only prescribed by doctors who have experience in behavioral problems in children or 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:
It is not their fault that they cannot do these things.
Many children and adolescents struggle to do them. 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 and work life.
Not all patients with ADHD need treatment with medication.
ADHD does not affect intelligence.
Do not take Methylphenidate Viatris if you or your child:
Do not take methylphenidate if you or your child have any of the above. If you are not sure, tell 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 or pharmacist before starting to take Methylphenidate Viatris if you or your child:
Other mental health problems include:
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.
Checks that your doctor will make before you or your child start treatment with methylphenidate
These checks are to decide if methylphenidate is the right medicine for you or your child. Your doctor will talk to you about:
It is important that you 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 methylphenidate, your doctor may refer you to a cardiologist.
During treatment, children and adolescents may unexpectedly develop prolonged erections. The erections can be painful and occur at any time. It is essential that you contact your doctor immediately if the erection lasts more than 2 hours, especially if it is painful.
Other medicines and Methylphenidate Viatris
Tell your doctor or pharmacist 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 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, shivering, muscle spasms, or rapid heartbeat. If you experience these side effects, see your doctor immediately.
If you or your child are taking other medicines, methylphenidate may affect their efficacy 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 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/anti-doping tests
This medicine may give a positive result in drug tests.
This includes tests used in sports.
Taking Methylphenidate Viatris 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, breastfeeding, and fertility
If you are pregnant or breastfeeding, think you may be pregnant, or plan to become pregnant, consult 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
Dizziness, concentration problems, or visual disturbances may occur during treatment with methylphenidate. If these side effects occur, it may be dangerous to perform activities such as driving, operating machinery, cycling, or horse riding, or climbing trees.
This medicine contains sucrose and sodium
If your doctor has told you that you have an intolerance to certain sugars, consult them before taking this medicine.
This medicine contains less than 1 mmol of sodium (23 mg) per tablet; this is essentially "sodium-free".
How much to take
You or your child must follow the administration instructions for this medication exactly as indicated by your doctor. In case of doubt, consult your doctor or pharmacist again.
Use in children from 6 years old
Use in adults
For adults who have taken methylphenidate before:
For adults who have not taken methylphenidate 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 a month of treatment, inform your doctor. Your doctor may decide if you need a different treatment.
What your doctor will do when you or your child are taking the treatment
Your doctor will perform some tests
Long-term treatment
This medication does not need to be taken indefinitely. If you or your child take this medication for more than a year, your doctor should interrupt treatment for a short period, such as during school holidays. This allows demonstration of whether you still need the medication.
Inadequate use of Methylphenidate Viatris
If this medication is not used properly, it can cause abnormal behavior. This can also mean that you or your child start to depend on the medication. Inform your doctor if you or your child have ever abused or been dependent on alcohol, prescription medications, or drugs.
This medication is only for you or your child. Do not give this medication to anyone else, even if they have similar symptoms.
If you or your child take more Methylphenidate Viatris than you should
If you or your child have taken too much medication, talk to a doctor, call the Toxicology Information Service, phone: 91 562 04 20, or call an ambulance immediately. Indicate the medication and the amount ingested. Medical treatment may be necessary.
The signs of overdose may include: being sick, agitation, tremors, increased uncontrolled movements, muscle contractions, seizures (which can be followed by coma), feeling extremely happy, confusion, seeing, feeling, or hearing things that are not real (hallucinations), sweating, flushing, headache, high fever, changes in heartbeats (slow, fast, or irregular), high blood pressure, dilated pupils, and dryness of the nose and mouth.
If you or your child forget to take Methylphenidate Viatris
Do not take a double dose to make up for forgotten doses. If you or your child forget a dose, wait to take the next dose at the scheduled time.
If you or your child stop taking Methylphenidate Viatris
If you or your child suddenly stop taking this medication, ADHD symptoms or unwanted effects such as depression may reappear. Your doctor may want to gradually reduce the amount of medication you take each day before stopping it completely. Consult your doctor before stopping treatment with this medication.
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. Although some people experience side effects, most people find that methylphenidate helps. Your doctor will inform you about these side effects.
Some side effects can be serious. If you or your child experience any of the following side effects, go to your doctor immediately:
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)
Frequency not known (cannot be estimated from the available data)
Other side effects, 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)
Frequency not known (cannot be estimated from the 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 side effects
If you or your child 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 Medicines Surveillance System for Human Use: https://www.notificaram.es. By reporting side effects, you can help provide 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 packaging, after CAD or EXP. The expiration date is the last day of the month indicated.
This medication does not require special storage conditions. However, the prolonged-release tablets should be kept in their original child-resistant packaging.
Do not use this medication if you notice that the tablet is damaged.
Medications should not be thrown away through wastewater or household waste. Deposit the packaging and medications you no longer need at the SIGRE collection point in the pharmacy. If in doubt, ask your pharmacist how to dispose of the packaging and medications you no longer need. This will help protect the environment.
Composition of Methylphenidate Viatris
Appearance of the product and package contents
Methylphenidate Viatris 18 mg are yellow to yellowish, round, and biconvex tablets, 6.3 mm in size. The tablet cannot be divided into equal doses.
The prolonged-release tablets are available in child-resistant screw-cap bottles.
Package sizes: 28 or 30 prolonged-release tablets.
Not all package sizes may be marketed.
Marketing authorization holder
Viatris Limited
Damastown Industrial Park
Mulhuddart, Dublin 15
Dublin
Ireland
Manufacturer
Develco Pharma GmbH
Grienmatt 27
79650 Schopfheim
Germany
McDermott Laboratories Ltd. t/a Gerard Laboratories
35/36 Baldoyle Industrial Estate
Grange Road, Dublin 13
Ireland
Generics [UK] Limited
Station Close, Potters Bar, EN6 1TL
United Kingdom
Viatris UK Healthcare Limited
Building 20, Station Close, Potters Bar, EN6 1TL
United Kingdom
Mylan Hungary Kft
Mylan utca 1, Komárom, 2900
Hungary
You can request more information about this medication by contacting the local representative of the marketing authorization holder:
Viatris Pharmaceuticals, S.L.U.
C/ General Aranaz, 86
28027 - Madrid
Spain
This medication is authorized in the Member States of the European Economic Area under the following names:
Germany Methylphenidathydrochlorid Mylan 18 mg Retardtabletten
Belgium Methylphenidate Retard Viatris 18 mg tabletten met verlengde afgifte
Denmark Methylphenidate Viatris
Spain Metilfenidato Viatris 18 mg comprimidos de liberación prolongada EFG
Finland Methylphenidate Viatris 18 mg depottabletit
France METHYLPHENIDATE VIATRIS LP 18 mg, comprimé pelliculé à libération prolongée
Norway Methylphenidate Viatris 18 mg depottabletter
Netherlands Methylfenidaat HCl Viatris Retard 18 mg, tabletten met verlengde afgifte
Portugal Metilfenidato Mylan
United Kingdom Xenidate XL 18 mg prolonged-release tablets
Sweden Methylphenidate Viatris 18 mg depottabletter
Date of last revision of this leaflet: November 2023
Detailed information about this medication is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) (https://www.aemps.gob.es/).
The average price of METHYLPHENIDATE VIATRIS 18 mg PROLONGED-RELEASE TABLETS in November, 2025 is around 10.01 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.
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