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Intensive ketamine use for multiple years: A case report

James X. Liu, Erin Zerbo, Stephen Ross

American Journal on Addictions October 1, 2014 DOI: 10.1002/ajad.12153.x (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Case study Case report Peer reviewed
Sample size 1
Population Patient with bipolar I disorder and history of substance dependence
Intervention Ketamine
Dose 1–3 g daily
Duration 5 years
Topics Addiction Ketamine Esketamine
Keywords Antidepressant Cognition Drug Bipolar disorder Mood disorders
Citations 1
Key findings Daily use of large doses of ketamine over 5 years produced acute antidepressant effects and diminished alcohol cravings without withdrawal or cognitive deficits upon cessation.

Abstract

Ketamine is known within the medical field for its anesthetic properties, yet its unique psychedelic and antidepressant properties are being increasingly recognized. We document the case of a patient with bipolar I disorder and an extensive history of substance dependence who used large doses of ketamine (1–3 g) on a daily basis over a period of 5 years, and described acute antidepressant effects as well as diminished cravings for alcohol. While his use was untenable and ultimately led to an inpatient admission, it is notable that he did not experience a withdrawal syndrome nor did he have any observable cognitive deficits upon cessation of use. Such a unique drug profile suggests that further exploration of its risks and therapeutic potential in treating mood and addiction disorders is warranted. (Am J Addict 2015;24:7–9)

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