What is a K Hole?

Question: What is a K Hole?

A typical question I might get from a user is: "Over the past year, I've experimented with weed, LSD, and ecstasy. I've also been offered ketamine, but I've heard it can make you 'fall into a k hole.' What is a k hole, and is it good to fall into one?" This, and related questions about the k hole experience, are answered below.


"Falling into a k hole" is slang for how it feels when you take a high-enough dose of ketamine that your awareness of the world around you, and your control over your own body, becomes so profoundly impaired that you're temporarily unable to interact with others—or the world around you.

Ketamine is a dissociative drug, meaning it makes users feel detached from their surroundings. This feeling of dissociation becomes more intense with higher dosages, which make users feel very disconnected from, and unaware of, their surroundings—even when they may technically be awake. They may also feel disconnected from, or unable to control, their own bodies, including the ability to speak and move around easily. One way to think about this is that the k hole is a state between intoxication and a coma.

While consciousness of the real world diminishes in a k hole, a fantasy world of delusions and hallucinations can take over. This is usually temporary, although longer-term users may begin to show ongoing dissociative and psychotic symptoms even after the drug wears off.

What Does a K Hole Experience Feel Like?

Falling into a k hole can be a frightening and intensely powerless experience, especially if your ability to speak is affected.

To others around you, you may simply look immobile and intoxicated, although your eyes may move around—an effect known as nystagmus. When in a k hole, it can be frustrating if someone is trying to communicate with you and you can't respond. But for some users, the k hole offers a temporary break from the stresses of life—reducing their existence to almost nothing.

If a K-Hole is So Bad, Why Do People Take Ketamine?

To those who have never used the drug, it can seem strange that anyone would want to take something that has these effects. Yet ketamine has grown in popularity, particularly among club-goers. Why would this be?

Part of the answer lies in peer pressure. When young people use drugs, their friends often want to keep up with the trend, and therefore try things their friends are trying—particularly when it's described as risky, exciting and pleasurable. Peer pressure probably accounts for a lot of the occasional use of ketamine that's been noted, but not for more excessive use: when falling into a k hole is actually the goal of taking ketamine.

Some drug users, particularly those who use drugs to self medicate feelings of depression and alienation, seek out feelings of disconnection and dissociation by using drugs that have these effects. In some respects, users feel they can at least "control" the experience of changing their uncomfortable feelings.

For these people, a k hole is a kind of oblivion that gives them a temporary escape from the world. Research has shown that heavier ketamine users tend to be more depressed than occasional users, but it's not clear whether the depression is caused by ketamine use and its impacts on these people's lives, or whether people who are already depressed are more vulnerable to ketamine addiction when using the drug as a form of self-medication.

Risks of the K Hole

As already pointed out, one of the risks of falling into a k hole is that you may have difficulty coming out of the state of dissociaton—meaning you may continue to feel disconnected from the world around you and from your life, and you may develop ongoing symptoms of psychosis.

There are also shorter term, potentially hazardous risks of the k-hole experience: it's possible to take too much, and for your heart to stop. Ketamine can also cause seizures, leading to brain damage. Taking ketamine can also make you accident-prone: you may become so out-of-touch with the world around you that you wander into traffic, have a serious fall, or drown. Many young people are unaware of these risks.


Khandrani, J., Rajput, A., Dahake, S., & Verma, N. "Ketamine induced seizures."Internet Journal of Anesthesiology 1092406X, 19. 2009.

Morgan, C., Monaghan, L., & Curran, H. "Beyond the K-hole: a 3-year longitudinal investigation of the cognitive and subjective effects of ketamine in recreational users who have substantially reduced their use of the drug." Addiction 99:1450-1461. 2004.

Morgan, C., Muetzelfeldt, L., Curran, H. "Consequences of chronic ketamine self-administration upon neurocognitive function and psychological wellbeing: a 1-year longitudinal study." Addiction 105:121-33. 2010.

Morgan, C., Muetzelfeldt, L., & Curran, H. "Ketamine use, cognition and psychological wellbeing: a comparison of frequent, infrequent and ex-users with polydrug and non-using controls." Addiction 104:77–87. 2004.

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