Slows: Narcotics typically slow neurotransmission, especially the ones signalling pain.
Answered 1/13/2016
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Similar to endorphin: The chemical structure of Codeine is similar to that of the neurotransmitter, endorphin, a natural pain-killer produced by the body. As such, Codeine molecules can fit readily into endorphin receptor sites, and stimulate those neurons to accomplish the same end result - suppressing the perception of pain.
Answered 6/21/2019
5.8k views
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