Clinically, Aspirin is not prescribed to those under 19. While the link has not been proven, often in medicine it is best to err on the side of caution when safe(r) alternatives like ibuprofen and acetaminophen are available (I understand acetaminophen is controversial here but it is considered to be safer than Aspirin for the use in under-19s. see ref).

While this is a much lower risk for 20 year olds and up, which may in fact make Aspirin safer than acetaminophen it is not the case for pediatrics.

Considering this site has a not insignificant number of under-19s and many who have kids it is important not to spread misinformation and as always consult with a physician or pharmacist.

[1] http://www.aafp.org/afp/2009/1215/p1472.html [2] http://www.cdc.gov/ncidod/diseases/reye.htm [3] http://www.mayoclinic.org/diseases-conditions/reyes-syndrome...