Ketamine for domestic violence survivors: PTSD, safety, and what the evidence shows

What domestic violence can leave behind

Domestic violence, which researchers usually call intimate partner violence, is not rare. According to the CDC’s National Intimate Partner and Sexual Violence Survey, more than 1 in 3 women and more than 1 in 6 men in the United States have experienced contact sexual violence, physical violence, or stalking by an intimate partner during their lifetimes. Behind those numbers are people who often spent years managing someone else’s moods to stay safe.

The emotional aftermath can be heavy. In a 1999 meta-analysis published in the Journal of Family Violence, Jacqueline Golding pooled studies of women who had experienced partner violence and found a weighted average prevalence of 63.8% for PTSD across 11 studies and 47.6% for depression across 18 studies. Many survivors describe it in plainer terms: jumping at a car door, scanning every room, struggling to sleep, or feeling numb and far away from people they love.

Partner abuse also tends to be repeated rather than a single event. That pattern is one reason some survivors meet criteria for complex PTSD, with shame, difficulty trusting others, and a shaky sense of self layered on top of classic PTSD symptoms. Head injuries and strangulation are also common in abusive relationships, which is why we ask about past concussions or loss of consciousness during intake; our article on ketamine after traumatic brain injury covers that overlap.

Why the nervous system stays on alert

When danger is ongoing and unpredictable, the brain adapts. Threat-detection circuits become quicker to fire, and the regions that help us put a memory in context and calm the alarm can have a harder time doing their job. That adaptation is protective while the danger is real. The trouble is that it often keeps running after you are safe.

Ketamine works on a different system than most psychiatric medications. It blocks NMDA receptors, which sets off a brief surge of glutamate signaling and a cascade linked to synaptic growth and neuroplasticity in animal and human research. Researchers think this window of increased flexibility may help explain why some people with PTSD and depression feel a shift within hours or days rather than weeks. That remains a working theory, and it is still being studied.

What the ketamine research shows

Ketamine has not been tested in a trial limited to domestic violence survivors. The relevant evidence comes from PTSD trials that enrolled people with many kinds of trauma.

A 2014 randomized crossover trial in JAMA Psychiatry by Feder and colleagues gave 41 people with chronic PTSD a single infusion of ketamine (0.5 mg/kg) or midazolam, an active placebo that also causes noticeable effects. Twenty-four hours later, PTSD symptoms were significantly lower after ketamine than after midazolam.

A follow-up trial by the same Mount Sinai team, published in the American Journal of Psychiatry in 2021, tested a longer course. Thirty people with chronic PTSD received six infusions over two weeks. By the end, 67% of the ketamine group (10 of 15) had responded, compared with 20% of the midazolam group (3 of 15). Among ketamine responders, the improvement lasted a median of 27.5 days after the main assessment.

These results are encouraging, and they are also small. Our overview of ketamine for PTSD walks through the broader body of evidence, including the studies that were less positive.

What the research does not show

It is worth being plain about the limits. No published trial has looked at ketamine specifically in survivors of intimate partner violence, so we cannot tell you how likely you are to respond. The PTSD trials were small, short, and run at research centers, and they did not tell us how long benefits last for most people or how best to maintain them.

Ketamine is FDA-approved as an anesthetic; its use for PTSD, depression, and anxiety is off-label. Spravato (esketamine), a related nasal spray, is FDA-approved for treatment-resistant depression, not for PTSD. Trauma-focused psychotherapy, such as cognitive processing therapy, prolonged exposure, or EMDR, remains the first-line treatment for PTSD. Ketamine may help some people engage with that work, but it does not replace it.

Safety comes before any treatment

If you are still in an abusive relationship, or the person who hurt you still has access to you, your physical safety comes first. Ketamine is not the right first step in that situation. The National Domestic Violence Hotline is free and confidential at 1-800-799-7233, or you can text START to 88788. If you are in immediate danger, call 911.

There are practical safety questions, too. Every infusion requires a sober adult to drive you home, and some survivors do not want a current or former partner involved. Tell us that at your consultation, and we will talk through who can bring you. We will not share your health information with a partner or family member without your written permission, and you can tell us how you would like us to contact you, or not contact you, at home.

Privacy, control, and choice during an infusion

For many survivors, the hardest part of any medical visit is giving up control. We take that seriously. As we describe in our article on trauma-informed ketamine care, you do not have to tell us what happened to you to receive treatment. “I have a trauma history and would rather not go into it” is a complete answer.

Before your first session, we agree on a stop signal and on the grounding steps you would like offered. You choose the music, whether you wear an eye mask, whether the door is open or closed, and whether Walter White and Wilma, our therapy dogs, are part of your visit. We tell you before we touch you, every time, including for blood pressure cuffs and IV checks.

Ketamine causes dissociation, a dreamlike, detached state that usually fades within an hour or two. For some survivors, that can feel freeing. For others, it can echo the numbness they learned in order to survive. Our article on understanding dissociation during ketamine explains what it can feel like. Marla Peterson, CRNA, oversees every infusion with anesthesia-level monitoring, and the dose can be slowed or paused if an experience becomes too intense.

Where ketamine fits alongside therapy

We think of ketamine as a possible adjunct, not a stand-alone treatment. Many survivors already work with a therapist, and some start because ketamine prompts them to. If you would like a therapist who understands both trauma and ketamine, our guide to finding an integration therapist in Tennessee is a good place to start. With your written permission, we are glad to coordinate with your therapist or prescribing provider.

Some survivors also carry sexual trauma from an abusive relationship. Our article on ketamine for sexual trauma survivors covers consent, touch, and control in more detail. Our Trauma & Grief program and PTSD page bring the rest of our trauma resources together.

Honest expectations and cost

Ketamine does not erase what happened, and it does not work for everyone. In the 2021 trial, about one in three people who received ketamine did not respond. Side effects during an infusion can include dissociation, nausea, dizziness, and a temporary rise in blood pressure, which is why monitoring matters. Please do not start, stop, or change any medication on your own; talk with your prescribing provider first.

Most people begin with a series of six infusions over two to three weeks, and we review how you are doing as the series goes. Sessions are $475 each, and our article on ketamine therapy cost explains what that covers. If ketamine is not a good fit for you, we will tell you directly and help you think about other options.