Severe anxiety that has not eased with therapy or standard medication can feel like a locked room. If you are searching for clinics in Manhattan that offer supervised ketamine infusions for severe anxiety, you are likely weighing a real question: where can I find care that is both medically safe and genuinely supportive? This guide explains what supervised IV ketamine involves, what the evidence says for anxiety, how to evaluate a Manhattan clinic, and how Nushama approaches this work.
Ketamine is not a cure, and we will not describe it as one. It is a tool that, used within careful medical oversight and paired with preparation and integration, may help some people find relief when other options have fallen short.
What “supervised ketamine infusion” actually means
A supervised ketamine infusion is treatment delivered inside a medical framework: physician-led protocols, on-site nursing, continuous vital-sign monitoring, and secure medication handling. IV ketamine (intravenous ketamine) means the medicine is delivered directly into a vein through a slow drip, usually over about 40 minutes, so the clinical team controls the exact dose in real time.
Supervision is active, not passive. A registered nurse or physician tracks your blood pressure, heart rate, and level of dissociation, a temporary sense of feeling detached from your body or surroundings, throughout the session and during recovery. Ketamine can cause short-term changes in blood pressure and heart rate, and continuous monitoring lets the team respond right away.
This matters because the setting itself carries risk when it is missing. In an October 2023 alert, the U.S. Food and Drug Administration (FDA) warned that using compounded ketamine products without provider monitoring for sedation, dissociation, and changes in vital signs may put people at risk for serious adverse events, and it noted that home use adds risk because on-site monitoring is not available (FDA Compounding Risk Alerts). Supervision is the safeguard that at-home and telehealth models often lack.
What the evidence says about ketamine for severe anxiety
Ketamine’s use for anxiety is off-label, and the research base is still growing, so honest framing matters. Here is what the peer-reviewed evidence currently suggests.
- Social anxiety disorder. In a double-blind, randomized, placebo-controlled crossover trial of 18 adults, Taylor and colleagues found that a single IV ketamine infusion (0.5 mg/kg over 40 minutes) produced a significantly greater reduction in anxiety than placebo on the Liebowitz Social Anxiety Scale (LSAS) (Taylor et al., 2018).
- Across anxiety conditions. A transdiagnostic systematic review and meta-analysis by Hartland and colleagues reported that in people with social anxiety disorder, obsessive-compulsive disorder (OCD), post-traumatic stress disorder (PTSD), and treatment-refractory anxiety, ketamine may have fast-acting anxiolytic (anxiety-reducing) effects lasting roughly one to two weeks after a single dose (Hartland et al., 2023).
Two honest caveats. First, many of these studies are small and measure single doses, so durable relief usually depends on a full series paired with ongoing support. Second, only Spravato (esketamine, an FDA-approved intranasal form of ketamine derived from its “S” molecule) carries FDA approval, and that approval is for treatment-resistant depression, not for any anxiety disorder. For anxiety specifically, both IV ketamine and Spravato are used off-label under a clinician’s guidance.
The takeaway: emerging evidence suggests ketamine can support relief for some people with severe anxiety, especially when standard treatments have not worked. It is not a guarantee, and it works best as one part of a broader plan.
Why the route of administration matters
Not every “ketamine treatment” is the same, and the delivery method shapes both safety and predictability. The main clinic-based options are IV infusion, intramuscular (IM) injection, and intranasal Spravato.
IV ketamine gives clinicians the most control. Because the medicine goes straight into the bloodstream, it reaches near-complete bioavailability, and the infusion can be slowed or stopped immediately if you feel overwhelmed. Oral and sublingual forms must pass through the digestive system first, where “first-pass metabolism” converts much of the dose before it reaches the brain, and how much survives varies from person to person. That variability can make at-home experiences either underwhelming or unexpectedly intense.
We view IV as the default for precision and control, while recognizing that intranasal or at-home options can suit some situations. The right choice depends on your history, screening, cost, and goals, and it is a decision to make with a clinician rather than alone. You can read more in our comparison of IV versus IM ketamine.
How to choose a Manhattan clinic for supervised ketamine infusions
Location is convenient, but the deeper questions are about safety and support. When you compare clinics in Manhattan offering supervised ketamine infusions for anxiety, look past the address and ask about the care model.
- Who supervises the infusion? Look for physician-led protocols and continuous monitoring by a licensed clinician, not a room where you are left alone.
- Is there real medical screening? A thorough intake should review your medical history, medications, and contraindications such as uncontrolled high blood pressure or certain cardiac concerns.
- Are preparation and integration included? Medicine is a catalyst. The work you do before and after a session is what helps turn early relief into lasting change.
- What does the setting feel like? A calm, private space supports the nervous system in a way a rushed clinical room rarely can.
- How is dosing individualized? Titrating the dose to you, rather than applying a fixed protocol to everyone, is a marker of careful care.
If a provider promises a cure, guarantees results, or minimizes the need for monitoring, treat that as a signal to look elsewhere.
What supervised IV ketamine looks like at Nushama
Nushama is a psychedelic wellness center in Midtown Manhattan, located at 515 Madison Avenue on the 21st floor near 53rd Street. Our physician-led IV ketamine infusions are supervised by an anesthesiologist and individually titrated for safety, and every journey includes preparation and integration.
Here is the general path most members follow:
- Medical and psychiatric intake. Our care team reviews your full treatment history, current medications, and goals to confirm ketamine is appropriate and safe for you. Pre-treatment testing can include blood pressure checks and an EKG.
- Preparation. A preparation session helps you set intentions and feel ready for the experience, so you arrive grounded rather than uncertain.
- Supervised infusions. Members typically receive a series of infusions over several weeks. You rest in one of 18 private journey rooms with a zero-gravity chair, ambient lighting, and curated music, while our doctors and nurses monitor your vitals and comfort throughout.
- Integration. Licensed therapists or trained integration guides help you make sense of what came up and translate it into daily life. Integration is the process that turns a single experience into practical, lasting change.
This structure reflects our point of view: healing is amplified by environment, community, and support, and the medicine is only one piece. You can explore the full experience in our guide to what to expect during a ketamine session or read specifically about ketamine for anxiety in Manhattan.
A note on science and subjective experience
Some people describe ketamine sessions in clinical terms; others describe something more personal or even spiritual. Both can be true. During a session, ketamine may open a window of neuroplasticity, a period when the brain is more able to form new connections, and the reflective quality of the experience can make that window meaningful. We hold both the research and the personal experience with equal respect, without hype and without dismissing what members feel.
Frequently asked questions
Is ketamine FDA-approved for anxiety?
No. Ketamine has been an FDA-approved anesthetic since 1970, and clinicians prescribe it off-label for anxiety. Spravato (esketamine) is the only FDA-approved ketamine-derived product, and it is approved for treatment-resistant depression, not for any anxiety disorder.
How long does relief from ketamine last for anxiety?
It varies. Research on single doses suggests anxiety reduction can last roughly one to two weeks (Hartland et al., 2023). Relief tends to build and last longer across a full series paired with integration, and some members move to periodic maintenance on their provider’s guidance.
Why choose a supervised clinic instead of at-home ketamine?
Supervision provides continuous monitoring of sedation, dissociation, and vital signs. The FDA has warned that using compounded ketamine without provider monitoring may put people at risk for serious adverse events, and that home use carries added risk because on-site monitoring is unavailable (FDA Compounding Risk Alerts).
Where is Nushama’s Manhattan clinic located?
Nushama’s flagship center is at 515 Madison Avenue, 21st Floor, New York, NY 10022, in Midtown Manhattan near 53rd Street. It is accessible via the E/M subway at 53rd Street and the 6 train at 51st Street.
Is IV ketamine safe for people with severe anxiety?
For appropriate candidates, IV ketamine delivered under medical supervision has a well-characterized safety profile, and the infusion can be slowed or stopped if anxiety arises during the session. Safety depends on proper screening for contraindications, which is why a thorough medical intake comes first.
Taking the next step
If standard treatments have not brought the relief you hoped for, supervised IV ketamine may be worth exploring, with clear eyes about both its promise and its limits. The right clinic pairs medical safety with genuine preparation and integration, in a setting designed to help you settle.
Speak with our care team to learn whether supervised ketamine therapy is a fit for you.
