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Medicines zanamivirQuestion & answer

zanamivir · Medicine question

What is the serum half-life of zanamivir after oral inhalation?

iatroX medicinesPublished 8 November 2026

The answer

Answer

The serum half-life of zanamivir after oral inhalation ranges from 2.6 to 5.05 hours.

Sources for this answer

Relenza 5mg/dose inhalation powder.GlaxoSmithKline UK · emc · SmPC §5.2 Pharmacokinetic properties · Version 26Document updated 21 December 2023

Sources checked 8 November 2026

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zanamivir

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