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TRANQUILYN 5 mg, 10 mg or 20 mg Tablets – patient leaflet, side effects, dosage

Updated:
Key facts
Status:
Prescription only (POM) Controlled drug (Schedule 2)
Medicine strength:
10 mg
Contains active substance:

Patient leaflet - Tranquilyn 10 mg tablets, Metylphenidate Hydrochloride 10 mg tablets

1. What Tranquilyn is and what it is used for

What it is used for

How it works

concentration and reduce impulsive behaviour.

The medicine is given as part of a treatment programme, which usually includes:

be managed using treatment programmes.

About ADHD

It is not their fault that they cannot do these things.

2. What you need to know before you take Tranquilyn

Do not take Tranquilyn if:

were born with a heart problem

o severe depression, where you feel very sad, worthless and hopeless

Checks that your doctor will make before you start taking Tranquilyn

It is important that you provide as much information as you can. This will help your doctor decide if methylphenidate is the correct medicine

Having an operation

is used. This is because there is a chance of a sudden rise in blood pressure during the operation.

Drug testing

This medicine may give a positive result when testing for drug use. This includes testing used in sport.

Tranquilyn with food, drink and alcohol

medicines contain alcohol.

Information for children and young people

It may help if you read small bits at a time.

Why have I been given this medicine?

While you are taking this medicine

happen in a school holiday.

Some people cannot have this medicine

You cannot have this medicine if:

Other medicines and Tranquilyn

a prescription.

buy any of these products

Warnings and precautions

worse. Your doctor will want to monitor how the medicine affects you.

important to contact your doctor straight away if your erection lasts for longer than 2 hours, particularly if this is painful.

fertility'

o the medicine has been prescribed to treat a medical problem and provided with the medicine and

o it was not affecting your ability to drive safely.

Driving and using machines

If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor for advice before taking this medicine.

Pregnancy, breast-feeding and contraception

is sexually active.

or your daughter:

is pregnant or think might be pregnant. Your doctor will decide whether methylphenidate should be taken. breast-feeding or planning to breast-feed. It is possible that methylphenidate is passed into human breast milk. Therefore, your doctor will decide whether you should breast-feed while taking methylphenidate.

3. How to take Tranquilyn

How much to take

If you do not feel better after 1 month of treatment

If you do not feel better, tell your doctor. They may decide you need a different treatment.

Not using Tranquilyn properly

if you have ever abused or been dependent on alcohol, prescription medicines or street drugs.

If you take more Tranquilyn than you should

If you forget to take Tranquilyn

If you stop taking Tranquilyn

Things your doctor will do when you are on treatment

Your doctor will do some tests

Long-term treatment

may happen during a school holiday. This will show if the medicine is still needed.

4. Possible side effects

Some side effects could be serious. If you have any of the side effects below, see a doctor straight away:

Common (affects less than 1 in 10 people)

Uncommon (affects less than 1 in 100 people)

Rare (affects less than 1 in 1,000 people)

Very rare (affects less than 1 in 10,000 people)

supply to the brain

bleed and bruise more easily

Other side effects (how often they happen is not known)

If you have any of the side effects above, see a doctor straight away.

Other side effects include the following. If they get serious, please tell your doctor or pharmacist:

Very common (affects more than 1 in 10 people)

Common (affects less than 1 in 10 people)

Uncommon (affects less than 1 in 100 people)

Rare (affects less than 1 in 1,000 people)

Very rare (affects less than 1 in 10,000 people)

Other side effects (how often they happen is not known)

Effects on growth

When used for more than a year, methylphenidate may cause reduced growth in some children. This affects less than 1 in 10 children.

Reporting of side effects

5. How to store Tranquilyn

These measures will help to protect the environment.

6. Contents of the pack and other information

What Tranquilyn contains

The active substance is methylphenidate hydrochloride.

The other ingredients are:

What Tranquilyn looks like and contents of the pack

Marketing Authorisation Holder and Manufacturer

This leaflet was last revised in September 2020

Some people need to talk to their doctor before they start having this medicine

How do I take my medicine (tablets)?

Possible side effects

with food

sleepy, it is important not to do outdoor sports

If you feel unwell in any way while you are taking your medicine please tell an adult you trust straight away.

Other things to remember

do not let anyone else have it. It may help you, but it could hurt someone else. don’t right away.

Who should I ask if there is anything I don’t understand?

Your mum, dad, carer, doctor, nurse or pharmacist will be able to help you.

36119000/0120 ption

stuttering

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk)

Last revision stated in the text: September 2020

What the sections and the side effect frequencies mean: How to read a patient leaflet

Found a mistake? Tell us on the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Facts about Tranquilyn 10 mg tablets, Metylphenidate Hydrochloride 10 mg tablets

What these facts mean

Prescription needed?? Yes, prescription-only medicine (POM)
Controlled drug?
Yes, Schedule 2 of the Misuse of Drugs Regulations?
  • Controlled drugs are medicines that UK law controls more strictly because they can be misused or cause dependence. The Misuse of Drugs Regulations 2001 divide them into 5 schedules: schedule 1 has the strictest rules and schedule 5 the least strict.
  • Schedule 2 is the strictest group of prescribed medicines, for example strong opioid painkillers and medicines for ADHD.
  • A prescription is valid for 28 days and usually covers up to 30 days of treatment. In England it cannot be issued as a repeat dispensing prescription.
  • When you collect it, the pharmacist must check whether you are the patient and may ask for ID.
  • Travelling abroad: carry it in your hand luggage, take your prescription or a letter from your doctor to show it is yours, and check the rules of the country you are going to with its embassy before you travel (GOV.UK).
Active substance? Methylphenidate
Strength? 10 mg
Pharmaceutical form? Oral tablet
White, flat, round tablets, marked 'RU 10' and with a breakline on one side.
The score line is only to facilitate breaking for ease of swallowing and not to divide into equal doses.
How is it taken? Oral
Excipients? Calcium hydrogen phosphate dihydrate, Microcrystalline cellulose, Maize starch, Magnesium stearate.
Pack sizes 30 tablet
Is it available?? Listed as available (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Shelf life? 24 months
Storage Do not store above 25°C. Store in the original package.
Drug group (ATC)?
  1. N Nervous system drugs
    1. N06 Psychoanaleptics
      1. N06B Psychostimulants, agents used for ADHD and nootropics
        1. N06BA Centrally acting sympathomimetics
          1. N06BA04 methylphenidate
Marketing authorisation? PL 18153/0002 (first authorised 1 October 2001)
Marketing authorisation holder? Laboratorios Rubio SA. C/lndustria. 29. Pol. Ind. Comte de Sert. 08755 Castellbisbal
Codes? GTIN 5060014442291 · BNF 04040000

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 11.1.0 of 9 November 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.