Should people use antiviral drugs before or after receiving the live attenuated influenza vaccine (LAIV) called FluMist®?
Antiviral medications should not be taken from 48 hours through 2 weeks after getting LAIV. LAIV is one of two types of flu vaccine. It is given as a nasal spray and contains weakened, live virus. Flu antiviral drugs taken from 48 hours before through 2 weeks after getting LAIV can lower or prevent the vaccinated person from responding to the vaccine and the person may not get immune protection from the vaccine.