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Ketamine's Mechanism of Action
Ketamine operates as a channel blocker, specifically by blocking NMDA receptors. Blocking these receptors with competitive inhibitors reduces its efficacy.
Excitatory Neurons
Pyramidal neurons that release glutamate.
Inhibitory Neurons
Parvalbumin neurons that release GABA.
Ketamine's mechanism on neurons
Ketamine selectively blocks glutamate receptors on inhibitory neurons, altering the excitement balance by reducing inhibition and increasing overall neuronal activity.