Methylphenidate is used to treat ADHD (Attention Deficit Hyperactivity Disorder) and narcolepsy.
Take methylphenidate regularly as directed with a glass of water.
Swallow methylphenidate slow release (e.g. Concerta®, Ritalin LA®, Ritalin SR®, Rubifen SR®) whole.
Take the missed dose as soon as possible. If it is close to the time for your next dose, skip the missed dose and carry on as normal. Do not take two doses at the same time.
Some medicines available without a prescription may react with methylphenidate including:
Tell your pharmacist or doctor about all medicines or treatments that you may be taking, including vitamins, herbal products or recreational drugs.
|Side Effects||Recommended action|
Fast or irregular heartbeat, chest pain
Reduced number of blood cells that fight infections or help your blood to clot - symptoms include: fever, chills, sore throat or generally feeling unwell, or easy or unusual bruising or bleeding
Symptoms of allergy including: skin rash, itching, swelling, trouble breathing
Prolonged erection (longer than four hours)
|Tell your doctor immediately|
Changes in vision
Unusual behaviour or thinking, mood changes, agitation, nervousness, strange or uncontrolled movements
|Tell your doctor|
Headache, trouble sleeping
Hair loss or thinning, sweating
Joint, muscle or bone aches and pains
Runny or blocked nose, cough
Loss of appetite, weight loss, dry mouth
|Tell your doctor if troublesome|
|Take with food|
If you notice any other effects, discuss them with your doctor or pharmacist.
This leaflet contains important, but not all, information about this medicine.
Prepared by the PILs Committee at Christchurch Hospital, Canterbury District Health Board, New Zealand. October 2020
For more general information about this sheet annd its contents, see: What does a My Medicines sheet cover?
Click on buttons to copy web addresses for this leaflet:
If your browser does not automatically copy these links use its copy command instead.
My Medicines Patient Information Leaflets (PILs) contain important, but not all, information about the medicines they describe.
For more information about the sheets, see: What does a My Medicines sheet cover?
My Medicines is developed by a team at the Canterbury District Health Board. Our team is made up of doctors, pharmacists, and a non-medical person to help us keep to plain language. We also discuss our information with specialist health professionals or groups when needed