http://www.fda.gov/cber/flu/flumistqa.htm
U.S. Food and Drug Administration
This document provides answers to questions about FluMist, which is approved to prevent influenza illness due to influenza A and B viruses in healthy children and adolescents, ages 5-17 years and healthy adults, ages 18-49 years. The document includes information on recommended doses, side affects, and active ingredient of FluMist.