physical dependence

(redirected from Chemical dependecy)

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.

physical dependence

substance dependence in which there is evidence of tolerance, withdrawal, or both.

physical dependence

Substance abuse A physiologic state of neuro-adaptation to a specific opioid, characterized by a withdrawal syndrome if the drug is stopped or ↓ abruptly, or if an antagonist administered; PD may be relieved partly or completely by readministration of the substance. See Addiction, Tolerance.
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