NCIt definition : A cyclohexanone derivative with analgesic and anesthetic properties. Although its
mechanism of action is not well understood, ketamine appears exerts complex pharmacological
actions including inhibition of biogenic amine uptake, binding to opioid receptors,
and inhibition of N-methyl D-aspartate (NMDA) receptors. Because of the involvement
of spinal NMDA receptors in the process of central sensitization, this agent may reduce
pain perception and induce sedation.;
Alternative definition : NCI-GLOSS: A drug used to cause a loss of feeling and awareness and to induce sleep
in patients having surgery. It is also being studied in the treatment of nerve pain
caused by chemotherapy. Ketamine blocks pathways to the brain that are involved in
sensing pain. It is a type of general anesthetic.;