Methylphenidate for ADHD (Concerta, Equasym, Medikinet, Ritalin, Tranquilyn)

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Methylphenidate is used to treat attention deficit hyperactivity disorder (ADHD).

During this treatment your child will be invited for regular check-ups. It is important that you keep these appointments.

Each time you collect a new supply from the pharmacy, check the name on the pack to make sure it is the same brand of methylphenidate as your child has had before.

Type of medicineA stimulant
Used forAttention deficit hyperactivity disorder (ADHD) in children aged over 6 years and young people
Also calledConcerta®; Equasym®; Medikinet®, Ritalin®; Tranquilyn®
Available asTablets, modified-release tablets, modified-release capsules

Attention deficit hyperactivity disorder (ADHD) is a fairly common condition that mainly affects a child's behaviour. Children with ADHD show persistent restlessness, impulsiveness and/or inattention. You will be given help to understand your child's emotions and behaviours, but where this is insufficient, medicines such as methylphenidate can be prescribed.

Methylphenidate increases the amount of a natural chemical in the brain, called dopamine. Increasing the amount of dopamine in the parts of the brain responsible for self-control and attention, stimulates them to work better. This then helps to focus your child's attention and improve concentration. It will initially be prescribed by a specialist doctor.

ADHD is usually diagnosed in children, but it can continue through the teenage years and into adulthood. This information leaflet is written for parents or carers of children and young people who have been prescribed methylphenidate.

Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before your child (or a child in your care) starts taking methylphenidate it is important that your doctor knows:

  • If your child has ever had an eating disorder or a severe mood disorder.
  • If your child has epilepsy.
  • If your child has raised pressure in their eyes (glaucoma).
  • If your child has a heart condition or any blood vessel disease.
  • If your child has an overactive thyroid (hyperthyroidism).
  • If your child has uncontrollable movements such as a nervous tic or Tourette's syndrome.
  • If your child has an adrenal gland tumour called phaeochromocytoma.
  • If it is for a teenager who could be pregnant or is breast-feeding.
  • If your child has ever had a drug or alcohol problem.
  • If your child is taking any other medicines. This includes any medicines which are available to buy without a prescription, as well as herbal and complementary medicines.
  • If your child has ever had an allergic reaction to a medicine.
  • Before starting this treatment, read the manufacturer's printed information leaflet from inside the pack. The leaflet will give you more information about methylphenidate and a full list of side-effects which may be experienced from taking it.
  • Make sure you give your child methylphenidate exactly as your doctor tells you to. Your doctor or pharmacist will tell you how many tablets/capsules they should take. The dose will also be on the label of the pack to remind you.
  • It is not important whether methylphenidate is taken before or after food, but try to remember to give your child methylphenidate at the same times of day, each day.
  • If you do forget a dose, give it as soon as you remember (unless it is nearly time for the next dose, in which case leave out the missed dose). Do not give two doses together to make up for a missed dose.

Taking immediate-release tablets (Ritalin® and Tranquilyn®)

  • If your child has been prescribed a tablet which does not have an 'XL' after the brand name (such as Ritalin® and Tranquilyn®) then it is likely they will need to take more than one dose each day. To begin with they may be prescribed just one or two doses each day, but this is likely to be increased after a few weeks to two or three doses every day.
  • The dose should be swallowed with a drink of water. If your child has difficulty swallowing the tablets, they can be broken in half along the score line.
  • Taking the dose after a meal may help reduce side-effects like feeling sick or indigestion.

Taking modified-release tablets/capsules (Concerta® XL, Equasym® XL, Medikinet® XL)

  • These brands contain methylphenidate in a modified-release tablet/capsule which releases it slowly over the day, to give a longer effect. These brands have the letters 'XL' after the brand name. It is usual to take one tablet or capsule each day, in the morning.
  • There are several brands of modified-release methylphenidate, but they do not all have the same effect. Because of this, it is important that you always give your child the same brand as they have taken before. Each time you collect a new supply, check the name on the pack to make sure it is their usual brand.
  • If your child is taking Concerta® XL tablets, these should be swallowed whole with a drink of water and must not be chewed or crushed.
  • If your child is taking Equasym® XL capsules or Medikinet® XL capsules, you can open these and sprinkle the contents on to a spoonful of apple sauce to make it easier for your child to swallow it. If you do this, the mixture must be swallowed straightaway, without chewing.
  • Keep the regular appointments with your doctor. Your doctor will want to check to ensure that the treatment is helping. Your doctor will also monitor things like weight and height, and do some blood tests.
  • There are treatment programmes that will be recommended for you and your child. These will provide you with strategies to improve their behaviour and reduce any long-term impact.
  • From time to time your doctor will assess the treatment to make sure it is still required. This may involve stopping methylphenidate for a short while.
  • There is a small amount of evidence to show that a change in diet may help some children with ADHD. If you think that diet may be a factor for your child, discuss this with your doctor to see if speaking with a dietician might be of benefit.
  • Before buying any medicines for your child, check with your pharmacist which medicines are safe for them to take alongside methylphenidate.
  • Your child should not drink alcohol while on methylphenidate.
  • If your child is due to have an operation, it is important that you tell the person carrying out the treatment that they are taking methylphenidate.
  • Your child should not stop taking methylphenidate unless your doctor tells them to do so. This is because stopping suddenly can cause problems and your doctor may recommend that the dose is reduced gradually.

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the most common ones associated with methylphenidate. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.

Common methylphenidate side-effects
What if my child experiences this?
Feeling or being sick, tummy (abdominal) pain, indigestionStick to simple meals - avoid rich or spicy foods. Taking methylphenidate after meals may help
HeadacheAsk your doctor or pharmacist to recommend a suitable painkiller
Feeling sleepy, dizzy, or tiredIf this happens, they should not use tools or machines (or drive)
DiarrhoeaGive plenty of water to drink to replace lost fluids
Cough and cold-like symptoms, lack of appetite, loss of weight, sleeping problems, mood changes, dry mouth, itchy rash, high temperature (fever), muscle pain, unusual body movements or tics, and hair thinningIf any of these become troublesome, speak with your doctor

Your doctor will have discussed with you the possibility that methylphenidate treatment may be associated with suicidal thoughts and thoughts about self-harm. Although this is very rare, if you think your child is having such thoughts, you must tell your doctor about it straightaway.

If your child experiences any other symptoms which you think may be due to this medicine, speak with your doctor or pharmacist.

  • Keep all medicines out of the reach and sight of children.
  • Store in a cool, dry place, away from direct heat and light.

Never take more than the prescribed dose. If you suspect that someone has taken an overdose of this medicine, go to the accident and emergency department of your local hospital. Take the container with you, even if it is empty.

This medicine is for you. Never give it to other people even if their condition appears to be the same as yours.

Do not keep out-of-date or unwanted medicines. Take them to your local pharmacy which will dispose of them for you.

If you have any questions about this medicine ask your pharmacist.

Further reading & references

Disclaimer: This article is for information only and should not be used for the diagnosis or treatment of medical conditions. EMIS has used all reasonable care in compiling the information but makes no warranty as to its accuracy. Consult a doctor or other healthcare professional for diagnosis and treatment of medical conditions. For details see our conditions.

Original Author:
Mr Michael Stewart
Current Version:
Peer Reviewer:
Prof Cathy Jackson
Document ID:
3641 (v29)
Last Checked:
19/10/2016
Next Review:
19/10/2019
The Information Standard - certified member

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