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A member asked:
What happens if a certain poison/drug blocks the receptor site for a particular neurotransmitter, is it considered an agonist or an antagonist?
A doctor has provided 1 answer
Could be either: We have both excitatory neurotransmitters (such as glutamate, glycine), and many inhibitory neurotransmitters (norepinephrine, acetylcholine, dopamine, serotonin), and some agents can interfere by imbalancing the homeostasis. However, mechanistically, receptor blockers really cannot be considered in either category.
Answered 5/3/2016
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