intranasal ketamine

Definition / meaning of intranasal ketamine

An intranasal formualtion of the synthetic cyclohexanone ketamine with analgesic and anesthetic activities. Although its mechanism of action is not well understood, ketamine appears to non-competitively block N-methyl-D-aspartate (NMDA) receptors and agonistically bind to and activate opiod mu and sigma receptors, thereby reducing pain perception, inducing sedation, and producing dissociative anesthesia.

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