Used primarily in the treatment of major depressive disorder, this compound functions as a tricyclic antidepressant by increasing the levels of certain neurotransmitters in the brain, such as norepinephrine and serotonin, through reuptake inhibition. It is also prescribed off-label for managing chronic pain conditions, including neuropathic pain and fibromyalgia, due to its modulating effect on nerve signaling. Additionally, it has been utilized in the prevention of migraines and treatment of attention deficit hyperactivity disorder (ADHD) in adults, particularly when other medications are ineffective. Its sedative properties make it useful in patients with depression accompanied by insomnia or anxiety.