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How Tamiflu Works: For the virus to penetrate human cells and then spread the infection to other cells throughout the body, it relies on an enzyme called neuraminidase (NA) that has a mushroom-like shape. The virus utilizes this enzyme to bust out of the host cell and spread lots more viruses (and chaos) throughout the body.
Tamiflu is the best-known of the prescription flu antiviralsâdrugs that can ease symptoms and shorten the course of the illness by inhibiting the growth of the flu virus in the body.