くすりのしおり

Internal
Revised: 12/2013

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 :
Pronon Tablets 150mg
 Active ingredient:
Propafenone hydrochloride
 Dosage form:
white tablet (φ: 8.6 mm, thickness: 4.0 mm)
 Print on wrapping:
(face) プロノン150mg, 547, (back) プロノン150mg

Effects of this medicine

This medicine works to normalize the pulse by blocking the sodium channel (membrane-stabilizing action) of cardiac muscle as well as prolonging the action potential duration.
It is usually used for the treatment of arrhythmia.

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 heart disease.
  • 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 1 tablet (150 mg as the active ingredient) at a time, 3 times a day. The dosage may be adjusted according to the patient's age and symptoms. Strictly follow the instructions.
  • If you miss a dose, take the dose when you realize you have missed a dose. However, if it is within 4 hours before the next dose, skip the missed dose and continue your regular dosing schedule from the next dose onwards. 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

  • Dizziness may occur after taking this medicine. Be aware of driving a car or operating machinery.
  • Do not take health food products that contain hypericum perforatum (St. John's wort) as those products may increase metabolism of this medicine and diminish the medicinal effect. If you are already taking any of those products, consult with your doctor or pharmacist.

Possible adverse reactions to this medicine

The most commonly reported adverse reactions include palpitation, chest pain, dizziness or swaying feeling, rash, itching, and malaise. If any of these symptoms occur, consult with your doctor or pharmacist.
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.
  • palpitation, shortness of breath, dizziness [ventricular tachycardia, ventricular fibrillation, sinus arrest, sinoatrial block, atrioventricular block, bradycardia, syncope]
  • general malaise, loss of appetite, yellowness in the skin and/or whites of the eyes [liver dysfunction, jaundice]
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 infants and young children. Store away from direct sunlight, heat and humidity.
  • Discard the remainder. Do not store them. Consult with your dispensing pharmacy or medical facility when you discard the medicine.

For healthcare professional use only : Day Month Year

For further information, talk to your doctor or pharmacist.