BSIP, AUSCAPE FERRERO / SCIENCE PHOTO LIBRARY BSIP, AUSCAPE FERRERO / SCIENCE PHOTO LIBRARY
Relenza anti-flu drug. Elderly man taking the anti-influenza (flu) drug preparation Relenza through an inhaler. If treatment begins within two days of the onset of flu, this drug can reduce the duration of the symptoms 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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