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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 (generic name: oseltamivir) is an antiviral medication used to attenuate and shorten the duration of the influenza virus, known also as the flu. In order to be most effective, Tamiflu must be taken within the first two days of the appearance of flu symptoms. It can also be used to prevent the contraction of influenza in high-risk patients who were in contact with an infected person.