NCIt definition : The active S-stereoisomer of the selective serotonin reuptake inhibitor (SSRI) citalopram
with antidepressant, anti-obsessive-compulsive and antibulimic properties. Escitalopram
inhibits the reuptake of the neurotransmitter serotonin (5-HT) at the serotonin reuptake
pump of the neuronal membrane of the presynaptic cell, thereby increasing levels of
5-HT within the synaptic cleft and enhancing the actions of serotonin on 5HT1A autoreceptors.
Unlike other SSRIs, escitalopram appears to not only bind to a primary high-affinity
site on the serotonin transporter protein but also to a secondary lower-affinity allosteric
site that is considered to stabilize and prolong drug binding.;
Alternative definition : NCI-GLOSS: A drug used to treat depression and certain anxiety disorders. It belongs
to the family of drugs called selective serotonin reuptake inhibitors (SSRIs).;