Function

• Researchers theorize that trazodone inhibits the uptake of the chemical serotonin by nerves in the brain and also increases the activity of serotonin.
  
  

Depression

• The FDA has approved trazodone to treat depression. Trazodone can relieve symptoms of depression but does not cure the disorder.
  
  

Insomnia

• Doctors commonly prescribe trazodone as a sedative for insomnia. Trazodone is effective and safe for this use, as well as an inexpensive generic drug.
  
  

Anxiety and Aggression

• Trazodone also is prescribed to treat panic attacks, anxiety disorders and agoraphobia. Additionally, trazodone is useful in calming aggressive behavior.
  
  

Cocaine Withdrawal

• Doctors also prescribe trazodone to patients undergoing cocaine withdrawal, as it helps with insomnia and preventing relapse.