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Gabazine (SR-95531) is a drug that acts as an antagonist at GABAA receptors. It is used in scientific research and has no role in medicine, as it would be expected to produce convulsions if used in humans.
Gabazine binds to the GABA recognition site of the receptor-channel complex and acts as an allosteric inhibitor of channel opening. The net effect is to reduce GABA-mediated synaptic inhibition by inhibiting chloride flux across the cell membrane, and thus inhibiting neuronal depolarisation. While phasic (synaptic) inhibition is gabazine-sensitive, tonic (extrasynaptic) inhibition is gabazine-insensitive.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Gabazine". A list of authors is available in Wikipedia.|