za·​nam·​i·​vir | \ zə-ˈna-mə-ˌvir How to pronounce zanamivir (audio) \

Definition of zanamivir

: an antiviral drug C12H20N4O7 that is a neuraminidase inhibitor taken by oral inhalation in the treatment and prevention of influenza A and B Zanamivir and oseltamivir block a key viral enzyme, neuraminidase, and reduce the duration of ordinary flu symptoms by a day or two, if started within 48 hours of the onset of symptoms.— Debora MacKenzie

First Known Use of zanamivir

1997, in the meaning defined above

History and Etymology for zanamivir

zan- (of undetermined origin) + -ami-, infix denoting a neuraminidase inhibitor (from neuraminidase) + -vir, combining element denoting an antiviral compound (from virus)

Note: According to the prescriptions of the U.S. Adopted Names Council, the initial element in generic drug names is to be meaningless.

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The first known use of zanamivir was in 1997

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Cite this Entry

“Zanamivir.” Dictionary, Merriam-Webster, Accessed 10 Jul. 2020.

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za·​nam·​i·​vir | \ zə-ˈnam-ə-ˌvir How to pronounce zanamivir (audio) \

Medical Definition of zanamivir

: an antiviral drug C12H20N4O7 administered by oral inhalation in the treatment of influenza A and B

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