Dictionary of Human Evolution and Biology

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Enkephalin Mimic

Any substance not normally found in the body and that can activate enkephalin receptor sites in the brain. Used in pain mediation. Enkephalin mimics include morphine, codeine and demerol. Mimics are often addictive, because they cannot be degraded enzymatically as rapidly as the enkephalins, and occupy the enkephalin receptor sites for longer periods.

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