If you've spent any time researching ketamine for depression, anxiety, or PTSD, you’ve probably noticed something potentially confusing: two very different options keep coming up, and they both involve the same medicine.
One is a ketamine infusion clinic. The other is ketamine-assisted psychotherapy (KAP). There’s also IM (a Ketamine shot) and Spravato (nasal spray). I won’t go into those two options today, and keep in mind they are other possible treatments.
People often assume these are two names for the same thing (infusion and KAP). They aren't. The medicine may overlap, but the model of care around it is different — and that difference could matter in how the experience feels and what you're able to do with it afterward.
Here's a look at both.
What a ketamine infusion clinic offers
A ketamine infusion clinic is a medical setting. A medical provider administers ketamine— usually through an IV—under supervision, and your vitals are monitored throughout. The focus is on the medication itself: getting an effective dose safely into your system and watching how your body and symptoms respond over a series of appointments.
Sessions are typically highly structured. You arrive, you're set up, you receive the medicine, you rest, you're monitored while it wears off, and you go home with someone driving you. Staff is usually nearby and available, and clinics vary in how much they attend to the room itself.
What's generally not included is a therapeutic relationship. In most infusion settings, no one is sitting with you for the duration of the experience, and there's no built-in time afterward to talk through what came up. You may see a different staff member each visit. The clinical question being asked is essentially: are your symptoms improving?
However, some infusion clinics do have therapists — for preparation beforehand, presence in the room during the infusion, and integration afterward. Where that's in place, the distinction I'm drawing here gets blurry in a good way. But it's still the exception, not the standard. If it matters to you, ask directly: Will a psychedelic-trained therapist be with me during the session, and is there time afterward to talk about it?
For some people, a purely medical model works great. If you're primarily looking for symptom relief, have a medically complex picture that benefits from close monitoring, or already have a therapist you're working with separately, an infusion clinic can be a genuinely good fit. This model has helped a lot of people, and I don't want to talk anyone out of it.
The medicine itself also differs. Infusion clinics deliver ketamine intravenously. In-office KAP most often uses a sublingual lozenge or troche. IV ketamine takes effect faster and can be adjusted while it's running. The medical provider can turn the drip up or down based on how you're doing in the moment. A lozenge or troche can sometimes come on more gradually, and there may be a need to take an additional lozenge or ‘booster’ partway through.
Neither route is simply better. The IV's precision is a genuine advantage, especially if your picture is medically complex. The slightly slower, more gradual arc of a lozenge or troche is often easier to stay present with and get used to, which is part of why it fits a therapy model well. Which route makes sense for you is a conversation between you and your prescriber, your budget, and time availability.
What ketamine-assisted psychotherapy offers
Ketamine-assisted psychotherapy uses the same medicine toward a slightly different aim. Rather than treating the medication as the intervention on its own, KAP treats it as something that opens a window — and then builds actual therapy around that window.
In practice, that means the medicine is one part of a larger system:
Preparation. Before any dosing happens, we meet. We talk about what's bringing you in, what you're hoping for, what you're afraid of, and what you want to be different, among other topics. We talk about what the experience may feel like so it's less disorienting when it arrives. We discuss logistics, from food to clothing to room setup, and answer any questions you may have.
The dosing session itself. I'm in the room with you. Not down the hall, not checking in periodically. Present for the whole thing. Sometimes that means we talk. More often, it means I'm simply there while you go inward, available if you need support. Ketamine can surface material that's tender, unfamiliar, or emotionally big. Having someone with you can immensely support how you/we navigate any possible difficult experiences.
Integration. This is what most distinguishes KAP, and what people underestimate. In the days after a session, insights and ‘content’ from the journey can feel vivid but also fleeting. Something that felt obvious and enormous on Tuesday can be hard to articulate by Friday. Integration sessions are where we take what emerged and turn it into something usable — connecting it to your actual life, your relationships, the patterns you've been stuck in. This is where a shift in perception becomes a change in how you live. This is the most important part of the psychedelic work.
The medicine doesn't do the work by itself. It creates a state of increased flexibility. What you do with that flexibility, how you understand it and when to apply it — that's the therapy and the personal work combined.
The clearest difference: what happens around the medicine
An infusion clinic often (not always) approaches ketamine as a standalone medical procedure, focused on the neuropharmacological action of the medicine itself — what it does to your brain and how your symptoms respond. KAP approaches the same medicine as one component of a psychological process, where what surfaces in you during and after the session is itself part of the treatment.
Both are legitimate, and both are practiced by licensed professionals.
The difference is where the benefit is understood to come from. One account locates it in the neurobiology. The other locates it there too — and also in what you're able to see, feel, and work with while that neurobiology is doing its part.
Both take safety seriously. Both involve licensed professionals. But they may be answering different questions. One is asking whether your symptoms are responding. The other is asking that too — and also asking what this experience is showing you, and what you want to do about it.
A few practical differences that follow from that:
Relationship. In KAP, you work with the same person throughout. That continuity means you're not re-explaining yourself, and it means the trust you build is part of the treatment, not incidental to it.
Time. KAP sessions are longer and less compressed. There's room for what happens to be unhurried.
What happens if it's hard? Ketamine sessions aren't always pleasant. Grief can arrive. Old material can surface. In a psychotherapy model, that isn't a bad thing, or a ‘bad trip’ — it's a valuable part of the session, and there's someone there to help you stay with it.
Afterward. Integration is a standard part of the KAP structure, not something you're left to arrange on your own.
A note on who does what
Worth being clear about roles, because it confuses people: in KAP, prescribing and facilitating are usually separate.
A prescriber — a physician, psychiatrist, nurse practitioner, or other qualified medical provider — evaluates whether ketamine is medically appropriate for you, determines the medication plan, and handles the medical side of your care. As a therapist and facilitator, I don't prescribe. My work is the psychological and relational side: preparing you, sitting with you, and helping you integrate what happens.
You're not choosing between medical oversight and therapeutic support. In a well-run KAP practice, you get both, from people whose roles are clear.
Which one is right for you?
An honest answer depends on what you're actually looking for.
An infusion clinic may fit better if you want a straightforwardly medical approach, your primary goal is symptom reduction, you have complex medical needs requiring close monitoring, or you already have an established therapy relationship you'd rather keep separate.
KAP may fit better if you have trouble with needles. Or if you've done therapy before and felt like you kept hitting the same wall, you want to understand what's driving your symptoms rather than only quiet them, the idea of going through a profound experience alone in a clinical room sounds hard, or you've had infusions already and found yourself thinking: something happened in there, and I don't know what to do with it.
That last one comes up more than you'd think. Plenty of people arrive at KAP after infusions — not because infusions failed them, but because the experience opened something they didn't have support to work with.
This isn't a fringe position within the field, either. Many IV clinics actively encourage their patients to find a psychedelic-assisted therapist to support the work — a recognition, coming from the medical side, that the medicine tends to do more when someone is helping you make use of it. Choosing to add therapeutic support isn't a vote against your infusion provider. Often, it's what they were hoping you'd do.
If you're still deciding
You don't have to have this figured out before you talk to someone. Most people don't arrive with clarity — they arrive tired, having tried a lot of things, hoping this might be different.
If you're weighing your options and want to talk through what KAP actually involves and whether it's a reasonable fit for what you're carrying, I'm glad to have that conversation. No pressure to commit to anything. Sometimes it helps to ask a person questions instead of a search bar.
This post is for general educational purposes and isn't medical advice. Whether ketamine is appropriate for you is a determination made by a qualified prescriber who can evaluate your individual history and health.