The Medical Letter on Drugs and Therapeutics
FROM
ISSUE 1615
ISSUE 1615
January 11, 2021
Baloxavir (Xofluza) for Post-Exposure Prophylaxis of Influenza
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January 11, 2021 (Issue: 1615)
The oral polymerase acidic endonuclease inhibitor
baloxavir marboxil (Xofluza — Genentech) is now FDAapproved
for post-exposure prophylaxis of influenza
in patients ≥12 years old. Baloxavir was approved for
treatment of acute uncomplicated influenza in patients
≥12 years old in 2018.1 Two neuraminidase inhibitors
are FDA-approved for prophylaxis of influenza:
oseltamivir (Tamiflu, and generics) in patients ≥1 year
old, and zanamivir (Relenza) in patients ≥5 years old.2
Unlike oseltamivir and zanamivir, baloxavir is not FDA-approved
for pre-exposure prophylaxis of influenza
during institutional or community outbreaks.
... more
- Baloxavir marboxil (Xofluza) for treatment of influenza. Med Lett Drugs Ther 2018; 60:193.
- Antiviral drugs for influenza for 2020-2021. Med Lett Drugs Ther 2020; 62:169.
- CDC. Influenza antiviral medications: summary for clinicians. November 30, 2020. Available at: https://bit.ly/34iCy9x. Accessed December 17, 2020.
- H Ikematsu et al. Baloxavir marboxil for prophylaxis against influenza in household contacts. N Engl J Med 2020; 383:309.

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