Oseltamivir is capsules for the treatment of influenza, and it is that type of medical preparation, which is used in the treatment or prevention of viral influenza infection, or what is also called “influenza”, and the preparation or drug has proven efficiency and effectiveness in that therapeutic purpose, due to The mechanism of action of the drug, in which it is transformed inside the liver into its active form, which depends on the inhibition of neuraminidase, which is one of the enzymes of the influenza virus “viral influenza”, and is related to its reproduction process.