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Substance Abuse and Addiction Health Center

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Illegal Drug Use on the Rise in U.S.

Survey Shows an Increase in the Rate of Marijuana Use
WebMD Health News
Reviewed by Laura J. Martin, MD

Sept. 8, 2011 -- The use of illicit drugs and the nonmedical use of prescription medications is increasing, and this is largely driven by an increased rate of marijuana use, a survey shows.

The survey on drug use was released by the Substance Abuse and Mental Health Services Administration (SAMHSA).

About 22.6 million Americans aged 12 and older used illicit drugs in 2010. That's nearly 8.9% of the U.S. population.

These rates are similar to those seen in 2009 (8.7%), but higher than in 2008 (8%). In 2010, 17.4 million Americans used marijuana, up from 14.4 million in 2007.

According to the National Survey on Drug Use and Health, which included about 67,500 people in the U.S. aged 12 and up:

  • More young adults aged 18 to 25 are using illicit drugs, up from 19.6% in 2008 to 21.5% in 2010.
  • Rates of nonmedical use of prescription drugs, hallucinogens, and inhalants are around the same as in 2009.

There were also some glimmers of hope seen in the new survey.

  • The number of current methamphetamine users decreased by roughly half from 2006 to 2010.
  • Cocaine use also declined, from 2.4 million current users in 2006 to 1.5 million in 2010.
  • Fewer 12- to 17-year-olds drank alcohol and used tobacco.

Peter Delany, PhD, is the director of SAMHSA's Center for Behavioral Health Statistics and Quality in Rockville, Md. He says that the rise in the use of illicit drugs from 2008 to 2010 is of concern, but the survey does show that we are making some dents in the use of tobacco and alcohol use.

"We really need to learn from what we have done with alcohol and tobacco," he says. "We really need to figure out this marijuana problem and understand how to help people not use and/or delay starting to use marijuana."

Rise of Prescription Drug Abuse

The new survey also highlights the growing problem of prescription drug abuse. Fully 55% of people aged 12 and older who had used prescription pain relievers for non-medical reasons in the past year received them from a friend or relative for free. Just 4.4% got the medications from a drug dealer and 0.4% bought them on the Internet.

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