BSIP, AUSCAPE FERRERO / SCIENCE PHOTO LIBRARY BSIP, AUSCAPE FERRERO / SCIENCE PHOTO LIBRARY
Relenza anti-flu drug. Opened pack of the anti- influenza (flu) drug preparation Relenza. The blister packs contain the powdered drug that is taken using the inhaler. If treatment begins within two days of the onset of flu symptoms, this drug can reduce their duration by up to 36 hours. However, Relenza cannot prevent influenza infections. Relenza contains the drug zanamivir which inhibits the neuraminidase enzyme which influenza viruses use to break away from one infected cell in order to infect other healthy cells.
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