くすりのしおり

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Revised: 8/2019

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 :
Inavir Dry Powder Inhaler 20mg [for treatment]
 Active ingredient:
Laninamivir octanoate hydrate
 Dosage form:
Inhaled dry powder
 Print on wrapping:
要処方, イナビル吸入粉末剤20mg, 第一三共, TwinCaps, 吸入剤, (1), (2), 製造番号

Effects of this medicine

This medicine selectively inhibits neuraminidase that is on the surface of type A/B influenza virus, prevents release of newly-produced virus from infected cells and suppresses the growth of influenza virus.
It is usually used to treat type A/B influenza virus infection.

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 an allergy to dairy products.
  • 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/children aged 10 years or more, inhale a dose of 2 packages once a day. For children aged under 10 years, inhale a dose of 1 package once a day. This product contains 20 mg of laninamivir octanoate in a package and the medicine is filled in 2 parts of the package. Strictly follow the instructions.
  • The medicine is only for oral inhalation use. Read the instruction for users (available only in Japanese) thoroughly before using the medicine.
  • Do not stop inhaling this medicine unless your doctor instructs you to do so.

Precautions while taking this medicine

  • Abnormal behavior has been reported in patients infected with influenza, regardless of the use or non-use, or the type of influenza antiviral medicine prescribed. Therefore it is important to prevent possible troubles including abnormal behavior resulting in fall accidents.
    Caregivers should take preventive measures for accidents including falls for at least 2 days after patients develop pyrexia if they are treated at home. Severe abnormal behavior is known to have been reported to occur with greater frequency in male school-age children/adolescents.

Possible adverse reactions to this medicine

The most commonly reported adverse reactions include diarrhea, nausea, gastroenteritis, hives and dizziness. 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.
  • syncope, breathing difficulty, hives, decrease of blood pressure, pale face, cold sweat [shock, anaphylaxis]
  • fitful shortness of breath, wheezing (whistling breath), breathing difficulty, shortness of breath on exertion [bronchospasm, respiratory distress]
  • sudden movement, wandering [abnormal behavior]
  • fever, bloodshot eyes, lips sores, sore throat, round or oval red rash [oculomucocutaneous syndrome, toxic epidermal necrolysis, erythema multiforme]
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 reach of children. Store away from direct sunlight, heat and moisture.
  • As it is aluminum-packed for moisture proofing, open the aluminum package just before inhalation.
  • 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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