question: What is the function of Oseltamivir when administered during flu?
answer: Oseltamivir (has known by its brand name 'Tamiflu') is a prodrug, requiring ester hydrolysis for conversion to the active form, Oseltamivir carboxylate. Oseltamivir is the first orally active neuraminidase inhibitor and it is an antiviral drug for the treatment of Swine Flu.