Ketamine is a classical dissociative substance of the arylcyclohexylamine class. Originally used as a surgical anesthetic but after becoming popular recreationally it is now used for its potential to relieve treatment-resistant depression. Effects of Ketamine are highly dose dependent. Subjective effects submitted by users report Ketamine at lower doses causes alcohol-like disinhibition and relaxing effects. At high doses Ketamine causes effects including motor control loss, hallucinations, memory suppression, dissociation and potentially “out-of-body” experiences.