If you’re exploring ketamine care in New York City, the question often sounds like a choice: medicine or therapy? The evidence says both. Infusions paired with psychotherapy, timed so each one strengthens the other, tend to work better than either alone. Ketamine integration therapy is the name for that pairing, a form of ketamine integration where getting the timing right turns a good day after an infusion into lasting change.
This guide walks through what that combination actually looks like, how the care models differ, and whether you can keep your own therapist. (Short answer: yes, and it’s simpler to coordinate than most people expect.)
Before we get into it: IV ketamine is used off-label for psychiatric and pain conditions, requires medical screening, and is not right for everyone. This guide is for educational purposes only and does not constitute medical advice. Please talk with a licensed clinician about your history before starting.
What does ketamine integration actually mean?
Ketamine integration pairs medically supervised ketamine dosing with structured psychotherapy. The model has three parts: preparation before dosing, the dosing session itself, and integration afterward. IV ketamine is a controlled infusion delivered through a vein under medical monitoring. Integration is the guided work that helps you make sense of the experience and carry it into your daily life.
The term gets used loosely, and that’s where confusion starts. Across New York City alone, a growing number of clinics offer some version of ketamine treatment, but what’s included varies widely. Some programs build in full preparation and integration with licensed clinicians. Others provide the medicine with little structured support around it. Both may call themselves “ketamine-assisted,” yet the care can look very different.
That gap matters. In an integration framework, the therapy is where lasting change takes hold. The infusion opens a window. The therapy is how you use it. For a broader look at how this process works from start to finish, see our complete guide to psychedelic therapy.
Why does the combination work better than either alone?
Ketamine appears to create a temporary state of heightened brain flexibility, and therapy placed inside that window helps new patterns take hold. Here’s the neuroscience behind it.
A single infusion sets off rapid synaptic changes. A 2023 randomized controlled trial found measurable gray-matter microstructural changes within 24 hours, in the same brain regions tied to ketamine-related neuroplasticity in animal studies. A 2022 systematic review describes a broader window of heightened flexibility lasting roughly 24 to 72 hours after dosing, with structural changes continuing over the following days and weeks.
What does that mean for you? During that stretch, entrenched thought patterns may be easier to loosen and rework. Skills practice, reframing, and emotional processing can land more deeply than on a typical day. For more on how this flexibility supports emotional regulation, see our explainer on ketamine, nervous system flexibility, and emotional resilience.
The clinical data supports pairing the two. A 2019 study across three practices found that ketamine delivered alongside psychotherapy was associated with reduced depression and anxiety, with the largest improvements among people with the heaviest symptom burden. A 2021 randomized trial found that cognitive behavioral therapy following ketamine infusions may help sustain the antidepressant response in treatment-resistant depression. For more on how long relief tends to last, see our review of what current research says about longer-acting ketamine.
What are the three models of ketamine care, and what does each get right?
Ketamine care generally follows one of three models, and each one makes a tradeoff worth understanding.
| Model | What it offers | What it gets right | The tradeoff |
|---|---|---|---|
| Infusion-only (medical) | Supervised dosing, little to no structured therapy | Medical rigor, monitoring, dose control | The plasticity window often goes unused |
| Therapist-led sublingual | At-home or in-office lozenges guided by a therapist | Therapeutic relationship, lower cost | Less predictable dosing and absorption; lighter medical oversight |
| Supervised IV plus integration | Physician-led infusions with preparation and integration | Dose precision and the window used deliberately | Higher touch; requires coordinated scheduling |
The infusion-only model treats ketamine as a medication. It brings real medical strengths, like screening, monitoring, and precise dose control, but often leaves the plasticity window without structured support around it.
The therapist-led sublingual model keeps a clinician close and can be more affordable. Lozenges taken at home or in an office tend to be less predictable, though. Absorption varies person to person, and medical oversight is usually lighter.
The third model combines physician-supervised IV dosing with preparation and integration built in. It asks more of your schedule. In return, the dose is controlled and the window is used with intention. This is the model the rest of this guide focuses on, and it’s the one we built Nushama around. For a closer look at why, see what makes Nushama different.
Keeping your therapist: how does ketamine integration therapy coordination work?
Yes, you keep your therapist. Ketamine integration therapy is designed to work alongside your existing care. Coordinating the two comes down to three things.
Sharing information. With your written consent, the clinical team at Nushama’s Midtown Manhattan location and your therapist exchange relevant history through a release-of-information form. Your prescriber gets the context needed for screening, and your therapist learns what came up during dosing. You decide how much is shared.
Timing. Whenever possible, scheduling an integration or therapy session within 24 to 72 hours of an infusion lets you work while your brain is most receptive. Many members book their regular therapy hour a day or two after dosing rather than the week before. If your therapist is elsewhere in the city, that often means scheduling the infusion at our 515 Madison Avenue clinic early enough in the week to fit a follow-up within a couple of days.
Dividing the work. Your therapist holds the long arc: your history, your ongoing goals, the relationship you’ve built over months or years. Integration focuses on what surfaces around dosing, what came up, what it might mean, and how to carry it forward. The two fit together rather than overlap. For a step-by-step look at the dosing visit itself, see our guide to what to expect during a ketamine infusion.
If you don’t have a therapist right now, Nushama’s NYC care team can help you build integration support into your plan. If you do, bringing them in tends to strengthen the work. For members dealing with trauma specifically, our ketamine for PTSD page covers how the coordination works in that context.
What do integration sessions actually cover?
Integration sessions are where a dosing experience becomes practical change. They tend to move through three kinds of work.
Reviewing intentions. Before dosing, you and your guide set an intention: a question, a theme, or something you want to explore. Integration starts by returning to it. What shifted? What stayed? What surprised you?
Making meaning. Ketamine can surface vivid imagery, strong emotion, or a sense of distance from your usual patterns. A guide helps you sit with that material and reflect on it without rushing to interpret. The goal is to treat what comes up as useful, not as literal instruction.
Putting insight into practice. This is the part that lasts. Insights become small experiments: a boundary to try, a conversation to have, a daily practice to test. The plasticity window pays off here, because new patterns get rehearsed while the brain is primed to hold onto them. For concrete ideas, see our list of easy integration practices and journal prompts for ketamine integration.
Many members tell us the changes they value most came not from the dosing itself but from the weeks of practice that followed.
The window is the opportunity, so use it deliberately
Medicine or therapy was always the wrong question. The evidence points to both, in the right order: a controlled dose to open the window, then structured support to make use of it.
At Nushama’s NYC clinic, that combination is the whole design. Physician-led IV ketamine infusions at 515 Madison Avenue, 21st Floor, in Midtown Manhattan are supervised by an anesthesiologist and delivered in private journey rooms. Preparation and integration sessions are part of the care. We’re happy to coordinate with your existing therapist, wherever they practice in the New York area. A release form and a little scheduling are usually all it takes.
If you’re weighing your options, the next step is a conversation. Book a consultation at Nushama’s Midtown Manhattan clinic to talk through your history, your goals, and whether this approach feels right.
If you’re exploring ketamine specifically for depression or anxiety, those pages walk through how Nushama approaches each condition.
FAQs
Do I have to stop seeing my current therapist to try ketamine therapy in NYC?
No. Ketamine integration therapy at Nushama is designed to complement your ongoing care. With a signed release-of-information form, your prescriber and therapist can share relevant history, and sessions can be timed to fall within the days after an infusion. Our Midtown Manhattan team regularly coordinates with therapists across the New York area.
What is the difference between integration and regular therapy?
Your therapist holds the long arc of your care: your history, your goals, the relationship you’ve built over time. Integration sessions focus on what surfaces around dosing: reviewing your intention, reflecting on what came up, and turning insights into concrete next steps. They add to your therapy rather than replace it.
When should therapy happen relative to a ketamine infusion?
Whenever possible, within 24 to 72 hours after dosing. A systematic review of the ketamine literature describes a period of heightened brain flexibility in the days after an infusion, and placing therapy or integration inside that window may help consolidate change. The care team at Nushama’s NYC clinic can help you schedule infusions and integration sessions around your existing therapy calendar.
Is IV ketamine better than at-home lozenges?
They serve different needs. IV infusions offer precise dose control and close medical monitoring, which is why they’re the standard at Nushama’s NYC clinic. At-home or sublingual options can be more affordable, but absorption is less predictable and medical oversight is usually lighter. A screening and consultation at our Midtown Manhattan location can help you figure out what fits best.
Does the research support combining ketamine with psychotherapy?
The published evidence points that way, though the research is still early. A 2019 cohort study across three practices found that ketamine integration was linked to reduced depression and anxiety, and a 2021 randomized trial found that cognitive behavioral therapy after infusions may help sustain the antidepressant response in treatment-resistant depression. These are promising findings, not guarantees, and individual results vary.
Where is Nushama’s NYC ketamine clinic located?
Nushama’s flagship is at 515 Madison Avenue, 21st Floor, New York, NY 10022, in Midtown Manhattan near 53rd Street. It is steps from the E/M subway at 53rd Street and a short walk from the 6 train at 51st Street, with Grand Central about 15 minutes on foot. You can reach the care team at (646) 394-9996.
Medically reviewed by Nushama’s clinical team. IV ketamine is used off-label for psychiatric and pain indications and requires medical screening; it is not appropriate for everyone.
