くすりのしおり

Internal
Published: 5/2015

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 :
VALACICLOVIR TABLETS 500mg "OHARA"
 Active ingredient:
Valaciclovir
 Dosage form:
white to faintly yellowish white tablet, major axis: 18.5 mm, minor axis: 7.5 mm
 Print on wrapping:
バラシクロビル500mg「オーハラ」, 抗ウイルス化学療法剤, Valaciclovir500mg「OHARA」, 500mg

Effects of this medicine

This medicine suppresses the viral growth by inhibiting replication of the viral DNA.
It is usually used to treat herpes simplex, herpes zoster and chickenpox. It is also used to suppress the development of herpes simplex infection caused by hematopoietic stem cell transplantation and recurrence of genital herpes.

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 renal disorder.
    If you are on dialysis.
  • 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))
  • [Adults]
    Herpes simplex: In general, for adults, take 1 tablet (500 mg of Valaciclovir) at a time, twice a day.
    Suppression of the development of herpes simplex infection caused by hematopoietic stem cell transplantation: In general, for adults, take 1 tablet (500 mg of Valaciclovir) at a time, twice a day from 7 days prior to hematopoietic stem cell transplantation to 35 days after transplantation.
    Herpes zoster: In general, for adults, take 2 tablets (1,000 mg of Valaciclovir) at a time, 3 times a day.
    Chickenpox: In general, for adults, take 2 tablets (1,000 mg of Valaciclovir) at a time, 3 times a day.
    Suppression of the recurrence of genital herpes: In general, for adults, take 1 tablet (500 mg of Valaciclovir) at a time, once a day. The dosage and dose frequency may be different according to your symptoms.
    [Children]
    Herpes simplex: In general, for children weighing 40 kg or more, take 1 tablet (500 mg of Valaciclovir) at a time, twice a day.
    Suppression of the development of herpes simplex infection caused by hematopoietic stem cell transplantation: In general, for children weighing 40 kg or more, take 1 tablet (500 mg of Valaciclovir) at a time, twice a day from 7 days prior to hematopoietic stem cell transplantation to 35 days after transplantation.
    Herpes zoster: In general, for children weighing 40 kg or more, take 2 tablets (1,000 mg of Valaciclovir) at a time, 3 times a day.
    Chickenpox: In general, for children weighing 40 kg or more, take 2 tablets (1,000 mg of Valaciclovir) at a time, 3 times a day.
    Suppression of the recurrence of genital herpes: In general, for children weighing 40 kg or more, take 1 tablet (500 mg of Valaciclovir) at a time, once a day. The dosage and dose frequency may be different according to your symptoms.
    In any case, the dosage and dose frequency may be different according to your underlying disease. Strictly follow the instructions.
  • If you miss a dose, take the missed dose as soon as possible. However, if it is almost time for the next dose, 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

  • Drink plenty of water than usual while taking this medicine. However, if you are instructed to restrict fluid intake, consult with your doctor or pharmacist.
  • This medicine may cause decreased consciousness including drowsiness. Pay close attention when driving a car or operating dangerous machinery. Patients with renal dysfunction are more susceptible to conscious disorder. Thereafter, avoid operating dangerous machinery if you are instructed to do so by your doctor.

Possible adverse reactions to this medicine

The most commonly reported adverse reactions include headache, decreased consciousness including drowsiness, abdominal pain, nausea, diarrhea and hypersensitivity (rash, hives, itching, photosensitivity).
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.
  • respiratory distress, angioedema, skin redness with generalized itching, palpitation [anaphylactic shock, anaphylactoid symptoms]
  • decreased urine output, edema, headache [acute renal failure]
  • decreased consciousness, hallucination, convulsion [neuropsychiatric symptom]
  • fever, redness of the conjunctiva, painful eruption on oral mucosa [toxic epidermal necrolysis, mucocutaneous syndrome]
  • general malaise, loss of appetite, yellowing of the skin and the white of eyes [hepatitis, 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 children. Store away from direct sunlight, heat and moisture.
  • Discard the remainder. Do not store them.

For healthcare professional use only : Day Month Year

For further information, talk to your doctor or pharmacist.

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