If this is an emergency, call 911


National Institute on Drug Abuse of the National Institutes of Health:

NIDA - This site offers the latest scientific research related to  drug abuse from the NIH. View mechanisms of drug action in the brain.  Download free guidelines and manuals based on the most current  scientific finding (start with Preventing Drug Use Among Children and  Adolescents, A Research Based Guide). You can even view national drug  abuse research conferences live on the Internet.

Substance Abuse and Mental Health Services Administration

SAMHSA - This is the Big Top Tent for a multitude of Federal services  related to alcohol, drug abuse, and mental health including: SAMHSA -  The National Clearinghouse for Alcohol and Drug Abuse Information