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za·nam·i·vir | \ zə-ˈna-mə-ˌvir 
\
\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
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zanamivir
nounza·nam·i·vir | \ zə-ˈnam-ə-ˌvir \
\Medical Definition of zanamivir
: an antiviral drug C12H20N4O7 administered by oral inhalation in the treatment of influenza A and B
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The first known use of zanamivir was in 1997
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