Definition: What is a tricyclic? Tricyclics are a class of medications that are used primarily to treat symptoms of depression. These medications work by increasing the availability of the neurotransmitters serotonin and norepinephrine in the brain. Tricyclics have also shown some utility in treating symptoms of other psychiatric disorders, including borderline personality disorder (BPD).
Tricyclic - Definition of Tricyclic
From Kristalyn Salters-Pedneault, PhD, former About.com Guide
Updated March 31, 2010
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
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