くすりのしおり

Internal
Revised: 7/2019

The information on this sheet is based on approvals granted by the Japanese regulatory authority. Approval details may vary by country. Medicines have adverse reactions (risks) as well as efficacies (benefits). It is important to minimize adverse reactions and maximize efficacy. To obtain a better therapeutic response, patients should understand their medication and cooperate with the treatment.
Brand name :
Ritalin Tablets 10mg
 Active ingredient:
Methylphenidate hydrochloride
 Dosage form:
white tablet, diameter: 7.0 mm, thickness: 2.6 mm, punch mark: CG202
 Print on wrapping:

Effects of this medicine

This medicine enhances the action of neurotransmitter in the brain, and stimulates central nervous system. It consequently increases the degree of wakefulness, and enhances the mood.
It is usually used to treat narcolepsy (sudden sleep attack in daytime).

Before using this medicine, be sure to tell your doctor and pharmacist

  • If you have previously experienced any allergic reactions (itch, rash, etc.) to any medicines.
    If you have: glaucoma, hyperthyroidism, angina pectoris, arrhythmia, tics (involuntarily occurred and repetitive movements in the body, Tourette's syndrome), depression, pheochromocytoma.
    If you are in state of anxiety/tension/excitation.
  • If you are pregnant or breastfeeding.
  • If you are taking any other medicinal products. (Some medicines may interact to enhance or diminish medicinal effects. Beware of over-the-counter medicines and dietary supplements as well as other prescription medicines.)

Dosing schedule (How to take this medicine)

  • Your dosing schedule prescribed by your doctor is ((        to be written by a healthcare professional))
  • In general, for adults, take 2 to 6 tablets (20 to 60 mg of the active ingredient) a day in 1 to 2 divided doses. The dosage should be adjusted according to the age or symptoms. Avoid taking after evening in principle. Strictly follow the instructions.
  • If you miss a dose, take a dose as soon as possible. If it is almost time for the next dose or at bedtime, skip the missed dose and continue your regular dosing schedule. You should never take two doses at one time.
  • If you accidentally take more than your prescribed dose, consult with your doctor or pharmacist.
  • Do not stop taking this medicine unless your doctor instructs you to do so.

Precautions while taking this medicine

  • Alcohol may intensify the action and adverse reactions of the medicine. Avoid drinking alcohol as possible.
  • The medicine may cause dizziness, drowsiness or blurred vision. Avoid driving a car or operating dangerous machinery.

Possible adverse reactions to this medicine

The most commonly reported adverse reactions include dry mouth, headache, sweating, loss of appetite, rash, joint pain, angioedema and erythema. If any of these symptoms occur, consult with your doctor or pharmacist. Long term use may cause strong desire that you can not stand without the medicine. If you recognized it, check with your doctor immediately.
The symptoms described below are rarely seen as initial symptoms of the adverse reactions indicated in brackets. If any of these symptoms occur, stop taking this medicine and see your doctor immediately.
  • fever, generalized redness of skin, scaling of skin [exfoliative dermatitis]
  • chest pain, pressured feeling of chest, cold sweat [angina pectoris]
  • high fever, disturbed consciousness, muscle stiffness [neuroleptic malignant syndrome]
  • headache, decreased consciousness, speech disorder [cerebrovascular disorder]
  • loss of appetite, general malaise, nausea and vomiting  [liver failure, liver dysfunction]
The above symptoms do not describe all the adverse reactions to this medicine. Consult with your doctor or pharmacist if you notice any symptoms of concern other than those listed above.

Storage conditions and other information

  • Keep out of the reach of children. Store away from direct sunlight, heat and moisture.
  • Consult with the pharmacy or with the medical institution where the medicine was prescribed, and return or discard the remainder according to the instruction.

For healthcare professional use only : Day Month Year

For further information, talk to your doctor or pharmacist.