Ketamine for Alcohol Use Disorder: What Does the Research Show?

Research into ketamine for alcohol use disorder is exploring a surprising question: could a medication better known for anesthesia—and increasingly studied in mental health care—also play a role in helping some people change problematic patterns of alcohol use?

Alcohol use disorder, often abbreviated AUD, is a medical condition characterized by difficulty controlling alcohol use despite negative consequences. Treatment can include behavioral therapies, support programs, medications, and combinations of approaches.

Yet treatment doesn’t work the same way for everyone.

That has led researchers to investigate additional approaches, including ketamine.

Why Are Researchers Studying Ketamine for Alcohol Use Disorder?

Ketamine affects the brain differently from many medications traditionally used in mental health care.

One of its primary actions involves the brain’s glutamate system, including NMDA receptors. Glutamate plays an important role in communication between brain cells, learning, memory, and neuroplasticity.

Neuroplasticity is the brain’s ability to adapt and reorganize.

Researchers are investigating whether ketamine’s effects on glutamate signaling and neuroplasticity could potentially be useful when combined with behavioral or psychological treatment for alcohol use disorder.

It’s an intriguing idea: if certain brain processes temporarily become more adaptable, could that create an opportunity to work on deeply established behaviors and associations surrounding alcohol?

Researchers don’t yet have a definitive answer—but early findings have been encouraging enough to continue studying the question.

What Has the Research Found?

Several human studies have investigated ketamine in people with alcohol use disorder.

A 2025 systematic review examined six studies involving 605 participants. Five reported favorable results on at least some alcohol-related outcomes, including abstinence, cravings, or heavy drinking days. However, the studies differed considerably in dosing, administration, therapy, and outcome measurements, making firm conclusions difficult.

An earlier systematic review found that outcomes for abstinence and reduced alcohol consumption appeared most favorable when ketamine was combined with psychotherapy, although results for relapse, craving, and withdrawal were mixed.

Another review similarly concluded that evidence involving alcohol use, cravings, and withdrawal was promising but not yet sufficient to draw definitive conclusions about ketamine’s effectiveness for alcohol use disorder.

In other words:

There’s a real scientific signal here—but there’s still a lot we don’t know.

Why Might Psychotherapy Matter?

One particularly interesting part of this research is that investigators aren’t necessarily looking at ketamine as a stand-alone solution.

Some studies have paired ketamine with psychotherapy.

That makes the neuroplasticity discussion especially relevant.

Researchers are exploring whether ketamine may create biological conditions that could complement psychological work aimed at changing established behaviors, responses, and patterns.

However, it’s important not to turn that hypothesis into a promise. Scientists are still working to determine exactly which effects matter, which patients may benefit, and what treatment protocols might be most effective.

What About Alcohol Cravings?

Craving is an important component of alcohol use disorder for many people, so researchers have specifically investigated whether ketamine affects it.

Some studies have reported reductions in cravings or alcohol consumption, while others have produced mixed results. A recent review found preliminary evidence of potential short-term benefits across substance-use disorders but emphasized the limitations of the existing research.

So it would be premature to say that ketamine simply “turns off” alcohol cravings.

The science is considerably more nuanced.

Is Ketamine FDA-Approved for Alcohol Use Disorder?

No.

Ketamine is an FDA-approved medication, but it is not FDA-approved specifically for the treatment of alcohol use disorder.

Its use for AUD remains an emerging area of research.

There are established treatments for alcohol use disorder, including behavioral therapies and FDA-approved medications. Anyone struggling with alcohol use should receive an individualized evaluation rather than assuming ketamine—or any single treatment—is the appropriate answer.

Ketamine Is Not a Treatment for Alcohol Withdrawal at Home

There is another important distinction.

Researchers have also studied ketamine in hospital settings as an adjunct in some cases of severe alcohol withdrawal. That is very different from outpatient treatment intended to address longer-term alcohol use disorder.

Alcohol withdrawal can be medically dangerous and, in severe cases, life-threatening.

Someone who may be physically dependent on alcohol should not abruptly stop drinking based on information in an article about ketamine. Medical evaluation may be necessary to determine how alcohol can be discontinued safely.

Where Does the Science Go From Here?

Ketamine research has expanded considerably beyond its traditional use as an anesthetic.

Alcohol use disorder is one of several areas researchers are now investigating.

Early studies suggest ketamine—particularly when incorporated into a broader treatment approach—may have potential to influence outcomes such as alcohol consumption, abstinence, or craving in some patients.

But larger clinical trials are still needed to understand long-term effectiveness, appropriate dosing, treatment protocols, safety, and which patients are most likely to benefit.

For now, ketamine for alcohol use disorder is best described as a promising area of research—not an established cure for alcohol addiction.

At Elevate Mind & Mood in Lincoln, Nebraska, our goal is to help patients understand emerging mental health treatments based on the science behind them and have informed conversations about their individual care.