substance dependence


dependence

 [de-pen´dens] a need for something; sometimes used as a synonym for drug dependence.chemical dependence (drug dependence) see drug dependence.emotional dependence psychological dependence.physical dependence (physiological dependence) drug dependence in which the drug is used to prevent withdrawal symptoms or in which it is associated with tolerance, or both.psychoactive substance dependence drug dependence.psychological dependence drug dependence in which the drug is used to obtain relief from tension or emotional discomfort; called also emotional dependence.substance dependence drug dependence.

sub·stance de·pen·dence

a pattern of behavioral, physiologic, and cognitive symptoms that develop due to substance use or abuse; usually indicated by tolerance to the effects of the substance and withdrawal symptoms that develop when use of the substance is terminated.

substance dependence

Psychiatry A maladaptive pattern of substance abuse, leading to clinically significant impairment or distress; DSD is formally defined by the DSM-IV as the presence of 3 or more clinical criteria. See Substance abuse. Substance dependence–3+ of following 1. Tolerance, either  a. A need for ↑ amounts, or  b. ↓ Effect with continued use of same amount of substance 2 Withdrawal symptoms 3. The substance is taken in larger amounts than intended 4. A persistent but unsuccessful desire to ↓ substance intake 5. Much time is spent in activities needed to obtaining the substance or recovering from its effects 6. Important occupational, social, or recreational activities are sacrificed because of substance use 7. Continued substance use despite user's knowledge of its adverse physical and/or psychological effects Modified from *Diagnostic & Statistical Manual of Mental Disorders, 4th ed, Wash, DC, Am Psychiatric Assn, 1994

sub·stance de·pen·dence

(sŭb'stăns dĕ-pen'dĕns) A pattern of behavioral, physiologic, and cognitive symptoms due to substance use or abuse; usually indicated by tolerance to the effects of the substance and withdrawal symptoms when use of the substance is terminated.

sub·stance de·pen·dence

(sŭb'stăns dĕ-pen'dĕns) Pattern of behavioral, physiologic, and cognitive symptoms that develop due to substance use or abuse.