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Active ingredient: Zanamivir - Brands, Medical Use, Clinical Data

Brands, Medical Use, Clinical Data

Drug Category

  • Antivirals
  • Enzyme Inhibitors
  • Neuraminidase Inhibitors

Dosage Forms

  • Powder

Brands / Synonyms

GANA; GNA; MODIFIED SIALIC ACID; Relenza; See Remark 8; Zanamavir ; ZMR


For the prevention and treatment of influenza


Zanamivir, an antiviral agent, is a neuraminidase inhibitor indicated for treatment of uncomplicated acute illness due to influenza A and B virus in adults and pediatric patients 7 years and older who have been symptomatic for no more than 2 days.

Mechanism of Action

The proposed mechanism of action of zanamivir is via inhibition of influenza virus neuraminidase with the possibility of alteration of virus particle aggregation and release.


4% to 17% following an orally inhaled dose


Not Available

Biotrnasformation / Drug Metabolism

Not metabolized


RELENZA is contraindicated in patients with a known hypersensitivity to any component of the formulation.

Drug Interactions

No clinically significant pharmacokinetic drug interactions are predicted based on data from in vitro studies.

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