Skip to main content
Update Location

My Location

Update your location to show providers, locations, and services closest to you.

Enter a zip code
Or
Select a campus/region

Definition

Substance use is the continued use of alcohol, illegal drugs, or the misuse of prescription or over-the-counter drugs with negative consequences. These consequences may involve:

  • Problems at work, school, home or in interpersonal relationships
  • Problems with the law
  • Health problems
  • Physical risks that come with using drugs in dangerous situations

Substances that are commonly used include:

Alternative Names

Substance abuse; Illicit drug abuse; Narcotic abuse; Hallucinogen abuse

References

American Psychiatric Association. Substance-related and addictive disorders. In: American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders. 5th ed. Arlington, VA: American Psychiatric Publishing; 2013:481-590.

Weiss RD. Drugs of abuse. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 31.

Last reviewed June 5, 2022 by Fred K. Berger, MD, addiction and forensic psychiatrist, Scripps Memorial Hospital, La Jolla, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team..

Related specialties

Our locations

See all 4 locations

Calendar Events and Lectures: Substance use

Al-Anon Meeting
UF Health Psychiatric Hospital
Gainesville, FL 32606

Al Anon Family Groups have one primary purpose: to help families and friends of alcoholics. However, Al Anons 2018 Membership Survey reported that…

Browse events calendar

News and Patient Stories: Substance use

Hannah Turns Recovery Into Purpose

“Just because you’ve hit bottom, doesn’t mean you have to stay there.” September is National Recovery Month, a time for raising awareness, reducing stigma and…

Hannah, second from right, alongside family members.
More Substance use stories

Latest podcast episodes

Listen to more Health in a Heartbeat episodes