Drug Abuse and Mental Illness Fast Facts
Questions and Answers
What is the relationship between drug abuse and mental illness?
What is chronic drug abuse?
What are some serious mental disorders associated with chronic drug abuse?
How prevalent are co-occurring disorders? Which occurs first--chronic drug abuse or serious mental illness? Can people with co-occurring disorders be treated effectively?
National Drug Intelligence Center is a component of the U.S. Department of Justice.
On June 15, 2012, the National Drug Intelligence Center (NDIC) closed.
To provide access to historical materials, an archived version of the NDIC website is available at http://www.justice.gov/archive/ndic/.
This website is no longer maintained and may contain dated information.