Voriconazole Dosage and Administration
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Questions and Answers

A patient weighing 65kg is prescribed voriconazole for aspergillosis. What is the maximum oral dose that is FDA approved?

  • 800mg/day
  • 12mg/kg/day
  • 300mg/day
  • 600mg/day (correct)
  • A 35kg patient is prescribed voriconazole. What is the appropriate maximum FDA approved daily oral dosage?

  • 300mg (correct)
  • 800mg
  • 12mg/kg
  • 600mg
  • Voriconazole should be administered at which of the following times in relation to meals?

  • It does not matter in relation to meals
  • At least one hour before or after meals (correct)
  • Immediately after meals
  • With meals
  • Which route of administration is available for Voriconazole?

    <p>IV, PO tablets, PO capsules, and PO liquid suspension (C)</p> Signup and view all the answers

    Which of the following best describes voriconazole's role in treating aspergillosis?

    <p>First-line treatment (A)</p> Signup and view all the answers

    What is a crucial instruction to provide a patient regarding the timing of oral voriconazole administration in relation to meals?

    <p>Take voriconazole at least one hour before or after meals. (C)</p> Signup and view all the answers

    A patient with aspergillosis has a body weight of 35 kg. What is the maximum FDA-approved daily oral dosage of voriconazole for this patient?

    <p>300mg/day (C)</p> Signup and view all the answers

    A geriatric patient weighing 50kg is prescribed voriconazole. Which of the following is the most important consideration when determining the appropriate dosage?

    <p>The prescribing guidelines for geriatric patients, ensuring the dose does not exceed the maximum limit. (A)</p> Signup and view all the answers

    What is the significance of a patient's CrCl when administering voriconazole, and what adjustments should be made based on it?

    <p>No dose adjustment is generally necessary based on CrCl, unless otherwise specified. (A)</p> Signup and view all the answers

    Besides tablets and IV, which of the following is another available formulation of voriconazole?

    <p>Liquid suspension (A)</p> Signup and view all the answers

    Flashcards

    Voriconazole forms

    Available as IV, PO tablets, capsules, and liquid suspension.

    Voriconazole indications

    First-line treatment for Aspergillosis.

    Dosage for 40kg+ patients

    12mg/kg/day IV, 600mg/day PO FDA approved, up to 800mg off-label.

    Dosage for 40kg- patients

    12mg/kg/day IV, 300mg/day PO FDA approved, up to 800mg off-label.

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    PO administration advice

    Give PO formulations at least 1 hour before or after meals.

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    Voriconazole maximum dosage for 40kg+

    FDA approved maximum is 600mg/day PO, off-label doses may reach 800mg/day.

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    Voriconazole maximum dosage for 40kg-

    FDA approved maximum is 300mg/day PO, off-label doses may reach 800mg/day.

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    IV dosage for all patients

    Constant dosage of 12mg/kg/day IV regardless of weight.

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    PO administration timing

    PO formulations should be taken at least 1 hour before or after meals.

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    Renal dose adjustment for Voriconazole

    No renal dose adjustment is necessary for Voriconazole.

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    Study Notes

    Voriconazole (Vfend) Dosage and Administration

    • Voriconazole is available as intravenous (IV), oral tablets, oral capsules, and oral liquid suspension.

    • It's a first-line treatment for aspergillosis.

    • Maximum dosages vary based on patient weight:

      • For patients weighing 40 kg or more:
        • IV dosage: 12 mg/kg/day
        • Oral dosage: FDA-approved maximum is 600 mg/day, but doses up to 800 mg/day have been used off-label.
      • For patients weighing 40 kg or less:
        • IV dosage: 12 mg/kg/day
        • Oral dosage: FDA-approved maximum is 300 mg/day, but doses up to 800 mg/day have been used off-label.
    • Oral formulations should be given at least one hour before or after meals.

    • No renal dose adjustment is typically necessary; however, further consideration is needed if creatinine clearance (CrCl) is affected.

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    Description

    This quiz covers the key dosage and administration guidelines for Voriconazole, a vital antifungal medication. Learn about the different formulations, maximum dosages based on patient weight, and special considerations for oral dosing. Perfect for healthcare professionals and students in medical fields.

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