[Present and future in development of new anti-influenza drugs].

Against pandemic influenza A (H1N1) 2009, anti-influenza drugs were useful to save the disease aggravation and reduce the mortality. In addition to the existing anti-influenza drugs, novel drugs, including neuraminidase inhibitors (peramivir and laninamivir) and RNA polymerase inhibitors (favipiravir), also have clinical potentials to suppress pandemic influenza A (H1N1) 2009 virus as well as seasonal influenza virus.