Substance Dependence

Substance dependence, commonly called drug addiction, is a user's compulsive need to use drugs in order to function normally. When such substances are unobtainable, the user suffers from withdrawal.

The section about substance dependence in the Diagnostic and Statistical Manual of Mental Disorders (more specifically, the 2000 "text revision", the DSM-IV-TR) does not use the word addiction at all. It explains:

When an individual persists in use of alcohol or other drugs despite problems related to use of the substance, substance dependence may be diagnosed. Compulsive and repetitive use may result in tolerance to the effect of the drug and withdrawal symptoms when use is reduced or stopped. This, along with Substance abuse are considered Substance Use Disorders....

This is far from the only way of defining the relevant terms, however (see "Defining terms" section below).

Read more about Substance DependenceBrief Overview, Defining Terms, Causes, Pathophysiology, Management, Epidemiology, History

Other articles related to "substance, substance dependence, dependence, substances":

Substance Abuse - History - DSM
... edition, published in 1980, was the first to recognize substance abuse (including drug abuse) and substance dependence as conditions separate from substance abuse alone, bringing ... The definition of dependence emphasised tolerance to drugs, and withdrawal from them as key components to diagnosis, whereas abuse was defined as "problematic use with social or occupational impairment" but ... In 1987, the DSM-IIIR category "psychoactive substance abuse," which includes former concepts of drug abuse is defined as "a maladaptive pattern of use indicated by...continued use despite knowledge ...
Substance Dependence - Society and Culture - Legislation
... Most countries have legislation which brings various drugs and drug-like substances under the control of licensing systems ... The substances covered often have very different addictive properties ... though the cost of producing most illegal addictive substances is very low, their illegality combined with the addict's need permits the seller to command a premium price, often hundreds of times the ...
Nonsynaptic Plasticity - Higher Brain Function - Learning - Substance Dependence
... nAChR activity has a different voltage-dependence than other Ca2+ permeable ion channels, as well as different temporal and spatial distribution and as a ...
Addiction - Substance Dependence
... Substance dependence can be diagnosed with physiological dependence, evidence of tolerance or withdrawal, or without physiological dependence ... DSM-IV substance dependencies include 303.90 Alcohol dependence 304.00 Opioid dependence 304.10 Sedative, hypnotic, or anxiolytic dependence (including benzodiazepine dependence and ...
Emergency Psychiatry - Scope - Substance Dependence, Abuse and Intoxication
... Another common cause of psychotic symptoms is substance intoxication ... However the underlying issues, such as substance dependence or abuse, is difficult to treat in the emergency room, as it is a long term condition ... Both acute alcohol intoxication as well as other forms of substance abuse can require psychiatric interventions ...

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