Worst Pills
zanamivir (RELENZA)

Drug and Dietary Supplement Profiles

A comprehensive review of the safety and effectiveness of this drug. If the drug is not a Do Not Use product, information on adverse effects, drug interactions and how to use the medication are included.
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  • zanamivir (RELENZA)
    We list this drug as Do Not Use because it is only minimally effective and can cause asthma.

Disease and Drug Family Information

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  • Antibiotics [hide all summaries]
    Antibiotics (drugs used to treat bacterial infections) are overwhelmingly misprescribed in the United States. Despite congressional hearings and numerous academic studies on this issue, it has become the general consensus that 40 to 60% of all antibiotics in this country are misprescribed. New studies continue to confirm the fact that a large proportion of antibiotic prescribing for both children and adults continues to be inappropriate.

Worst Pills, Best Pills Newsletter Articles

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  • An Update on H1N1 Influenza [hide all summaries]
    (December 2009)
    As the H1N1 influenza continues to spread, we review the best ways to prevent the flu. We also discuss over 100 products that the Food and Drug Administration reprimanded for selling unapproved flu treatments online.
  • Do Not Use! The Flu Drug Zanamivir (RELENZA) Revisited [hide all summaries]
    (January 2002)
    Editor’s Note: We are reprinting our first review of zanamivir (RELENZA) that appeared in the November 1999 issue of Worst Pills, Best Pills News. Over the past two years no credible evidence has been published that would alter our view that this drug lacks meaningful therapeutic value in the treatment of influenza.

Additional Information from Public Citizen

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