Fast Facts U.S. teen use of all illicit drugs is at a newly-recorded low, while past-year teen use of illicit drugs other than marijuana is down from recent peaks. Teen use of prescription opioid pain relievers is trending downwards among 12th graders, with a 45 percent drop in 2016 use compared to five years ago. In 2016, 14.3 percent of 12th graders say they used an illicit drug other than marijuana, compared to its recent peak of 17.8 percent in 2013. Recent Research National Institutes on Health (NIH) Monitoring the Future survey 2016 finds teen use of most illicit substances down, and marijuana use relatively stable. National Institute on Drug Abuse (NIDA)’s Principles of Adolescent Substance Abuse Disorder Treatment: A Research-Based Guide highlights trends in use and treatment, noting that more than 20 percent of U.S. teens will have used a prescription drug for a nonmedical purpose by the time they are high school seniors. Interesting Information The American Association for Marriage and Family Therapy offers information on adolescent substance abuse. Preventteendruguse.org features a collection of preventative resources for parents and school administrators. The site offers videos and stories that reinforce messages about the dangers of substance abuse.