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SNRIs

By Arlin Cuncic, About.com

Updated: March 28, 2009

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Definition: SNRIs refer to a class of antidepressants called "serotonin-norepinephrine reuptake inhibitors." SNRIs are used in the treatment of depression, anxiety and other related disorders. Only one SNRI, Effexor XR, has been approved for the treatment of social anxiety disorder (SAD).

Other SNRIs include Serzone, Cymbalta and Pristiq. Unlike selective serotonin reuptake inhibitors (SSRIs), which affect only serotonin, SNRIs inhibit the reuptake of both serotonin and norepinephrine. Whereas serotonin is involved in the regulation of mood, norepinephrine is believed to have an impact on alertness and energy.

Also Known As: selective norepinephrine reuptake inhibitors
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