Substance use

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

Substance use is the continued use of alcohol, illegal drugs, or the misuse of prescription or over-the-counter medicines 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:

Related Information

Drug use first aid
Substance use disorder

References

American Psychiatric Association. Substance-related and addictive disorders. In: American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders. 5th ed, text revision. Arlington, VA: American Psychiatric Publishing; 2022.

Weiss RD, Liebschutz JM. Drug use disorders. In: Goldman L, Cooney KA, eds. Goldman-Cecil Medicine. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 365.

Review Date: 6/5/2022

Reviewed By: Fred K. Berger, MD, addiction and forensic psychiatrist, Scripps Memorial Hospital, La Jolla, CA. Internal review and update on 07/23/2023 by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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