Can ketamine treat alcohol use disorder?

Ketamine is not an FDA-approved treatment for alcohol use disorder, and it is not a standalone cure. That said, the strongest evidence to date, the 2022 KARE trial published in the American Journal of Psychiatry, found that ketamine paired with relapse-prevention therapy helped people who had already stopped drinking stay abstinent longer than placebo. The key finding is that ketamine appears most useful when it is combined with structured psychological therapy, not given on its own.

What did the KARE trial actually find?

The KARE trial studied 96 people with alcohol use disorder who were abstinent at the start. Participants who received three ketamine infusions alongside relapse-prevention therapy stayed completely sober for 162 of 180 days during six-month follow-up, about 87 percent of days abstinent, and were more than two and a half times more likely to remain fully abstinent than those given placebo. The group that got both ketamine and therapy did better than ketamine alone, therapy alone, or placebo.

How might ketamine help with drinking?

Researchers think several mechanisms may be at work. Ketamine acts on the brain's glutamate system and briefly increases neuroplasticity, the brain's capacity to form new connections. That window may make it easier for therapy to reshape the habits, memories, and cravings that drive drinking. Ketamine also has a rapid antidepressant effect, and because low mood and drinking often feed each other, easing depression may indirectly support recovery. These ideas are promising but still being studied.

Do I need to be sober before ketamine treatment for alcohol?

In the research that showed benefit, participants were abstinent before their infusions, and ketamine was used to help prevent relapse rather than to manage active drinking or withdrawal. Combining ketamine with ongoing heavy alcohol use raises real safety concerns. Any responsible program starts with a careful medical evaluation, coordination with your other providers, and an honest conversation about where you are in your recovery before deciding whether ketamine is appropriate.

Is ketamine for alcohol use disorder available in Tennessee?

Ketamine for alcohol use disorder remains an off-label, emerging use, and it is not right for everyone. At our Franklin clinic we treat depression, anxiety, PTSD, and chronic pain, and we evaluate each person's full history before recommending anything. If drinking is tangled up with depression or trauma you are also trying to address, we are glad to talk through whether ketamine fits your situation and to coordinate with any addiction specialists already on your team.

Ketamine for Alcohol Use Disorder: What Research Shows

Alcohol use disorder is one of the most stubborn conditions in medicine. Most people who want to cut back or quit try more than once. Relapse is so common that clinicians treat it as part of the process rather than a personal failure, and the medications we have, naltrexone, acamprosate, disulfiram, help some people meaningfully but leave many others still struggling. So when a familiar anesthetic started showing up in serious trials as a possible aid to recovery, it caught the attention of researchers who had grown used to modest results.

We want to be careful with this topic. There is real science here, and there is also a lot of overpromising online. Our goal is to lay out what the evidence actually says, where it is strong, where it is thin, and what a responsible use of ketamine in this setting would look like.

Why Anyone Thought to Try Ketamine for Drinking

Two threads led here. The first is ketamine's effect on the brain's glutamate system. Ketamine blocks the NMDA receptor and, in the hours and days afterward, prompts a burst of new synaptic connections. We describe this in detail in our piece on how ketamine works. Addiction, in part, is a disorder of learning: the brain has learned, deeply and durably, to link certain cues, feelings, and places with drinking. If ketamine briefly loosens the brain's fixed patterns and makes it more malleable, the reasoning goes, that same window might make it easier to weaken those learned associations, especially with therapy layered on top.

The second thread is mood. Depression and heavy drinking travel together so often that untangling them can be hard. Alcohol worsens depression, and depression pulls people back toward alcohol. Ketamine's rapid effect on depression could, in theory, ease one of the forces that keeps the cycle spinning. Neither of these mechanisms is fully proven in the context of alcohol, but both are plausible, and both pointed researchers toward the same experiment.

The KARE Trial: The Study Worth Knowing

The most important piece of evidence is the Ketamine for Reduction of Alcoholic Relapse trial, known as KARE, led by a team at the University of Exeter and published in the American Journal of Psychiatry in 2022. It was the first trial to compare ketamine with and without therapy in any mental health condition, which makes it useful well beyond alcohol treatment.

Ninety-six adults with alcohol use disorder, all abstinent at the start, were randomly assigned to one of four groups:

Ketamine plus relapse-prevention therapy
Ketamine plus alcohol education
Placebo (saline) plus relapse-prevention therapy
Placebo plus alcohol education

Participants received three infusions of a low dose of ketamine, or saline, over the course of a multi-week program. The design was deliberate: it let the researchers separate what the drug contributed from what the therapy contributed, and to see what happened when the two were combined.

The headline result came from six-month follow-up. The group that got both ketamine and relapse-prevention therapy stayed completely sober for 162 of 180 days, roughly 87 percent of days abstinent, and was more than two and a half times as likely to be fully abstinent at the end of the trial than the placebo group. Ketamine also outperformed placebo on the total number of days people stayed off alcohol. The combination of ketamine and therapy did better than ketamine alone, therapy alone, or placebo.

People who had ketamine combined with therapy stayed completely sober for 162 of the 180 days in the six-month follow-up period, and were more than two and a half times as likely to stay completely abstinent as those on placebo. — Grabski et al., American Journal of Psychiatry, 2022 (the KARE trial)

What the Trial Does and Doesn't Tell Us

It is easy to read a result like that and hear it as bigger than it is, so a few honest caveats matter.

First, this was a phase-II trial with 96 participants. That is a meaningful size for this kind of study, but it is not the large, multi-site confirmation that would settle the question. Encouraging early results in psychiatry do not always hold up at scale.

Second, everyone in the trial was already abstinent when they started. KARE tested ketamine as a tool for preventing relapse, not for helping someone stop drinking in the first place and not for managing acute withdrawal. Mixing ketamine with active heavy drinking is a genuinely different and riskier scenario, and the trial says nothing reassuring about it.

Third, and this is the part we think gets lost, the therapy was not optional decoration. The best outcomes belonged to the group that got ketamine and structured psychological work. Ketamine appears to open a window; the therapy is what walks through it. This fits what we see across ketamine's other uses and is a big part of why we talk so much about the neuroplastic window and about pairing infusions with real integration work rather than treating the drug as a standalone fix. Our overview of ketamine-assisted psychotherapy covers how that pairing works in practice.

How This Fits With the Broader Addiction Research

KARE does not stand entirely alone. Ketamine has now been tested in a handful of randomized controlled trials across substance use disorders, including cocaine, opioids, and nicotine as well as alcohol. Systematic reviews of this body of work reach a cautious but consistent conclusion: ketamine shows promise for addiction, especially when it is delivered alongside psychotherapy, and the effect often seems stronger when the infusion produces a meaningful subjective experience rather than passing unnoticed. Some smaller studies have also reported that ketamine reduced alcohol withdrawal symptoms and the amount of benzodiazepine medication needed during detox, though that is a separate hospital-based use from the relapse-prevention model KARE studied.

None of this makes ketamine a first-line treatment for alcohol use disorder. It remains off-label and investigational for this purpose. What it does suggest is a real and reproducible signal that deserves the larger trials now underway. This connects to the wider story we tell in our writing on ketamine and addiction recovery.

What Responsible Use Would Look Like

If someone came to us wondering whether ketamine could help with their drinking, we would not reach for the infusion pump first. We would start with a conversation and a careful evaluation, because the details of a person's situation change everything.

Where you are in recovery matters. The evidence supports ketamine as a relapse-prevention aid for people who have already stopped, not as a way to drink less while still drinking heavily. Active alcohol use alongside ketamine raises safety concerns we take seriously.
The whole picture matters. Drinking is often braided together with depression, anxiety, trauma, or chronic pain. When those conditions are present, they shape whether and how ketamine might help, and they may be the primary thing worth treating.
Coordination matters. Good addiction care is rarely one clinician working alone. We would want to work alongside any counselor, physician, or recovery program already supporting you, not around them.
Therapy is not optional. The research is clear that ketamine's benefit in this setting showed up when it was paired with structured psychological work. We would treat that pairing as essential, not as an add-on.

An Honest Place to Land

Ketamine is not a shortcut out of alcohol use disorder, and anyone selling it that way is getting ahead of the science. What the research genuinely supports is more modest and more interesting: in people who have stopped drinking, a short course of ketamine combined with relapse-prevention therapy helped them stay stopped longer than placebo did. That is a real finding, from a real trial, in a condition where lasting results are hard to come by.

If you are carrying both a drinking problem and the depression or anxiety that so often rides alongside it, you are not a lost cause, and you do not have to sort out which one to name first before reaching out. We are a small team in Franklin, and we are glad to talk honestly about what ketamine can and cannot do for your particular situation.

Ketamine for Alcohol Use Disorder: What the Research Shows