Methoxyketamine or 2-MeO-2-deschloroketamine is a designer drug of the arylcyclohexylamine class first reported in 1963.[1] It is an analog of ketamine in which the chlorine atom has been replaced with a methoxy group. Its synthesis by rearrangement of an amino ketone has been reported.[2] As an arylcyclohexylamine, methoxyketamine most likely functions as an NMDA receptor antagonist. It produces sedative, hallucinogenic, and (at high doses) anesthetic effects, but with a lower potency than ketamine itself.