DefinitionBy Mayo Clinic staff
Drug addiction is a dependence on an illegal drug or a medication. When you're addicted, you may not be able to control your drug use and you may continue using the drug despite the harm it causes. Drug addiction can cause an intense craving for the drug. You may want to quit, but most people find they can't do it on their own.
For many people, what starts as casual use leads to drug addiction. Drug addiction can cause serious, long-term consequences, including problems with physical and mental health, relationships, employment and the law.
You may need help from your doctor, family, friends, support groups or an organized treatment program to overcome your drug addiction and stay drug-free.
- Commonly abused drugs. National Institutes of Health. http://www.drugabuse.gov/DrugPages/DrugsofAbuse.html. Accessed June 28, 2011.
- Samet JA. Drug abuse and dependence. In: Goldman L, et al. Cecil Medicine. 23rd ed. Philadelphia, Pa.: Saunders Elsevier; 2008. http://www.mdconsult.com/das/book/body/158928328-6/0/1492/148.html?tocnode=54613109&fromURL=148.html. Accessed June 28, 2011.
- Weaver MF, et al. Overview of the recognition and management of the drug abuser. http://www.uptodate.com/home/index.html. Accessed June 28, 2011.
- Substance dependence. In: Diagnostic and Statistical Manual of Mental Disorders DSM-IV-TR. 4th ed. Arlington, Va.: American Psychiatric Association; 2000. http://www.psychiatryonline.com. Accessed July 11, 2011.
- Renner JA Jr, et al. Drug addiction. In: Stern TA, et al. Massachusetts General Hospital Comprehensive Clinical Psychiatry. Philadelphia, Pa.: Mosby Elsevier; 2008. http://www.mdconsult.com/books/about.do?about=true&eid=4-u1.0-B978-0-323-04743-2..X5001-X&isbn=978-0-323-04743-2&uniqId=262392956-3. Accessed June 28, 2011.