Antidepressants: Not just for mood disorders

Antidepressants influence the way brain chemicals regulate mood and other body functions and behaviors. Examples include selective serotonin reuptake inhibitors, such as fluoxetine (Prozac) and citalopram (Celexa); and serotonin and norepinephrine reuptake inhibitors, such as venlafaxine (Effexor) and duloxetine (Cymbalta). Although the medications are commonly used to treat depression, sometimes they are used to treat other conditions such as insomnia, headaches, gynecological pain, or nerve pain.