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drugabuse.gov
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Definitions (25)
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Addiction
A chronic, relapsing disease characterized by compulsive drug seeking and use, despite serious adverse consequences, and by long-lasting changes in the brain.
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Agonist
A chemical entity that binds to a receptor and activates it, mimicking the action of the natural (or abused) substance that binds there.
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Antagonist
A chemical entity that binds to a receptor and blocks its activation. Antagonists prevent the natural (or abused) substance from activating its receptor.
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barbiturate
A type of CNS depressant prescribed to promote sleep (usually in surgical procedures) or as an anticonvulsant.
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benzodiazepine
A type of CNS depressant prescribed to relieve anxiety and sleep problems. Valium and Xanax are among the most widely prescribed medications.
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Buprenorphine
A mixed opiate agonist/antagonist medication approved by the FDA in October 2002 for the treatment of opioid addiction (e.g., heroin).
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CNS Depressants
A class of drugs that slow CNS function (also called sedatives and tranquilizers), some of which are used to treat anxiety and sleep disorders; includes barbiturates and benzodiazepines.
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Comorbidity
The occurrence of two disorders or illnesses in the same person, also referred to as co-occurring conditions or dual diagnosis. Patients with comorbid illnesses may experience a more severe illness course and require treatment for each or all conditions.
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detoxification
A process in which the body rids itself of a drug (or its metabolites). During this period, withdrawal symptoms can emerge that may require medical treatment. This is often the first step in drug abuse treatment.
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