Skip to content

Journey through the K-hole: phenomenological aspects of ketamine use.

L Muetzelfeldt, Sunjeev K. Kamboj, H Rees, J Taylor, C J A Morgan, Hv Curran

Drug and Alcohol Dependence March 19, 2008 DOI: 10.1016/j.drugalcdep.2008.01.024 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Qualitative study Peer reviewed
Sample size 90
Population 30 frequent ketamine users, 30 infrequent recreational users, and 30 ex-users abstinent for at least 3 months
Topics Ketamine Esketamine
Keywords Humans Substance-related disorders Attitude Mental disorders Health status Adult Female Surveys and questionnaires Illicit drugs
Key findings Frequent ketamine users reported escalating use, with a mean six-fold dose increase from initiation to current use and most using until supplies ran out. Frequent users were more concerned about physical health problems such as K-cramps and cystitis, while ex-users were more concerned about mental health problems. The authors argue these dependence patterns and specific health issues should be recognized by substance misuse services.

Abstract

Although recreational use of the dissociative anaesthetic drug ketamine is currently increasing, little is known about the phenomenological aspects of its use. We therefore designed a structured interview to examine initiation experiences, positive and negative effects of ketamine use, and concerns about the drug and its long-term effects. Ninety participants (30 frequent users, 30 infrequent 'recreational' users and 30 ex-users who had abstained from use for at least 3 months) were interviewed and reported drug use was verified by hair sample analysis. The most appealing aspects of ketamine for two-thirds of users were "melting into the surrounding", "visual hallucinations", "out-of-body experiences" and "giggliness". Unappealing effects for half of users were "memory loss" and "decreased sociability". Frequent ketamine users expressed more concerns than other groups about long-term effects on physical health problems, especially K-cramps and cystitis, whereas ex-users were more concerned about mental health problems. Addictive/dependent patterns of behaviour were also a concern: the majority of frequent users reported using the drug without stopping until supplies ran out and the mean increase in dosage in this group was six-fold from initiation to current use. We have identified specific health issues which seem uniquely related to ketamine use. Additionally, the dependence on ketamine frequently reported by users may be a cause for concern as its popularity grows and substance misuse services should be made aware of this when clients present in the future.

Comparable studies

Other qualitative studies on ketamine, most cited first.

Study Year Design Participants
Ketamine for Depression, 4: In What Dose, at What Rate, by What Route, for How Long, and at What Frequency? 2017 Qualitative review
Holding on or letting go? Patient experiences of control, context, and care in oral esketamine treatment for treatment-resistant depression: A qualitative study. Patients with treatment-resistant depression participating in off-label oral esketamine... 2022 Qualitative study n = 17
A Cohort-Based Case Report: The Impact of Ketamine-Assisted Therapy Embedded in a Community of Practice Framework for Healthcare Providers With PTSD and Depression Healthcare providers 2022 Quality improvement evaluation with mixed methods n = 94
Predictors of Psychedelic Experience: A Thematic Analysis First-person reports of psychedelic use from the Erowid database (six reports each for... 2022 Thematic analysis n = 22
Expert Opinion on Psychedelic-Assisted Psychotherapy for People with Psychopathological Psychotic Experiences and Psychotic Disorders Experts in psychiatry, clinical psychology, medicine, and psychedelic effects 2024 Qualitative study n = 12

Citations in the library

Explore topics