According to a study published in the International Journal of Neuropsychopharmacology in 2018, specific brain waves are related to the anti-anxiety effects of ketamine. The brain waves involved in this function are called theta waves, found in the right frontal area of the brain. Ketamine can treat a wide variety of neurotic disorders, such as depression, generalized anxiety disorder, and PTSD, but researchers do not conclusively understand how ketamine works to relieve the symptoms of these disorders.
Ketamine as a rapid antidepressant has been replicated in numerous studies. More recently, ketamine has been shown to help patients with obsessive compulsive disorder, post-traumatic stress disorder and treatment-refractory anxiety disorder (TRA disorder). However, some patients reported a recurrence of depressive or anxiety symptoms after a single treatment. This recurrence of symptoms leads to the question: How long can patients’ symptoms improve with repeated ketamine dosing in anxiety?