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10 ml of ketamine solution crystallizing

"K-hole" is a slang term for the subjective state of dissociation from the body commonly experienced after sufficiently high doses of the dissociative anesthetic ketamine. This state may mimic the experiences such as catatonic schizophrenia,[1] out-of-body experiences (OBEs) or near-death experiences (NDEs),[2] and is often accompanied by feelings of extreme derealization, depersonalization and disorientation, as well as temporary memory loss and vivid hallucinations.[3]


The experience of the K-hole is, like many psychedelic experiences, highly subjective, and ketamine's effects may vary greatly between individuals. Often set and setting, the use of other drugs (prescribed or otherwise), as well as the user's physiology, psychology, personality and brain chemistry are among many defining factors which may affect an individual's personal experience of the K-hole, as well as other altered states of consciousness in general.

Impressions of the K-hole often include profound distortions in or complete loss of bodily awareness, sensations of floating or falling, euphoria, and total loss of time perception. Users may experience worlds or dimensions that are indescribable, all the while being completely unaware of or having lost their individual identities or their sense of an extant and external world.[4]

Subjective effects[edit]

Ketamine and its subjective effects were related by Timothy Leary to the eighth and final circuit of his eight-circuit model of consciousness, along with DMT and high doses of LSD.

In music[edit]

  • British Sea Power released the song, "K-Hole", on their album Machineries of Joy
  • Enuff Z'nuff's song, "Saturday", features the lyric: "peek out a K-hole and crawl inside"
  • Grouplove's song, "Don't Stop Making it Happen", starts with the lyric: "Take it back to Saturday, I was in a K-hole"
  • NOFX released the song, "Kids of the K-Hole", about a K-hole in on their So Long and Thanks for All the Shoes (1997) album
  • The electronic group Organ Donors released the song, "Ket is for Horses", featuring a voiceover addressing the effects of the drug Ketamine, including the K-Hole
  • The electronic group The Chemical Brothers released the song, "Lost in the K-Hole", their album Dig Your Own Hole (1997)
  • The Silver Jews released the song, "K-Hole", on their album Tanglewood Numbers (2005)

See also[edit]


  1. ^ A James Giannini (1997). Drugs of Abuse (Second ed.). Los Angeles: Practice Management Information Corp. p. 126. ISBN 1-57066-053-0. 
  2. ^ Drugs; Mood, Memory and Mayhem, D Corrigan, The Drug Treatment Centre Board Evening Seminar Series. 2 November 2004 (page 6)
  3. ^ Woodard, D., "The Ketamine Necromance", in Apocalypse Culture II, ed. Parfrey, A. (Los Angeles: Feral House, 2000), pp. 288-295.
  4. ^ Ketamine, Pai & Heining, Contin Educ Anaesth Crit Care Pain (2007) 7 (2): 59-63.


  • Curran, HV; Monaghan, L (May 2001). "In and out of the K-hole: A comparison of the acute and residual effects of ketamine in frequent and infrequent ketamine users". Addiction. 96 (5): 749–60. doi:10.1080/09652140020039116. PMID 11331033.