These are some of the best sources of information in the internet. Educate yourself about drug abuse. Consult your child's physician or a professional abuse counselor as needed.
I hear from parents much too often "I wish that I had drug tested before it was too late".
There are so many apps and tools today to keep track of your kids. Where that are, what they are texting, even apps that track menstrual cycles. I encourage parents not to judge until you have walked in the shoes of a parent with a hard to parent teenager.
SAMHSA finds substance abuse treatment facilities by location at (http://findtreatment.samhsa.gov/locator/home)
National Institute on Drug Abuse (http://www.nida.nih.gov/)
NIDA for Teens (http://www.teens.drugabuse.gov/)
Parents.The Anti-Drug (drugfree.org)
Partnership For A Drug Free America (http://www.drugfreeamerica.org)
What You Need To Know About Starting A student Drug Testing Program(http://www.whitehousedrugpolicy.gov/publications/student_drug_testing/student_drug_testing.pdf)
Substance Abuse & Mental Health Services Administration (http://www.samhsa.gov/)
Office of National Drug Control Policy (www.whitehousedrugpolicy.gov)
The best source of drug "street terms"(www.whitehousedrugpolicy.gov/streetterms/Default.asp)
Help finding Residential Treatment Centers and Schools for Teens (www.corebb.com)