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Usnic Acid Inhibits Viral Respiratory Infection

Analysis by Dr. Joseph Mercola Fact Checked
  • February 09, 2021
    50966

usnic helps inhibit flu virus

Story at-a-glance

  • Usnic acid is a metabolite of lichens and was first isolated in 1844; derivatives have demonstrated activity against influenza virus strains and a derivative modified with valine reduced deaths in infected animals without liver toxicity

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