Two decades of research support ketamine’s effectiveness as a depression treatment. Researchers believe that ketamine mainly relieves depression through glutamate stimulation. Ketamine may also address depression through other methods at the same time. It may improve communication within certain areas of the brain to provide added antidepressant effects. Some researchers think that it reduces inflammation signals related to mood disorders. Patients who have depression relief from their first few treatment sessions have a high likelihood of prolonging its effects with repeated visits.
An increasing base of research also suggests that ketamine could treat the symptoms of anxiety disorders. It shows potential for treating generalized anxiety disorder (GAD) and social anxiety disorder (SAD). Studies show that in addition to relieving feelings of anxiety in patients with GAD or SAD, ketamine can also improve work and social functioning.