Search for a ketamine clinic in London and the results are uniformly private: consultant-led services with published prices around £595 per infusion and considerably more for a full programme. What those websites tend not to mention is that an NHS foundation trust in Oxford runs a ketamine service of its own at £265 per infusion, that a small amount of genuinely NHS-funded ketamine treatment exists, and that clinical trials will treat you for nothing. None of this is hidden; it is simply not advertised by anyone with a marketing budget. This guide puts the routes side by side — what each costs, who qualifies, how long each takes and what you actually get — so you can decide with the full menu in front of you. For every legal route beyond ketamine, see our UK access guide; for an early sense of your own eligibility, start with the eligibility check.
The routes at a glance
| NHS-funded | NHS trust, self-funded (Oxford) | Private clinic | |
|---|---|---|---|
| Who can use it | Oxfordshire and Buckinghamshire patients referred by an Oxford Health consultant psychiatrist; plus limited pilots at Oxford Health and CNWL | Anyone with a referral letter from a GP or psychiatrist (subject to the service's current intake rules) | Anyone who passes the clinic's medical screening; self-referral widely accepted |
| Price | Standard NHS care, free at the point of use | £265 per infusion and per initial assessment; budget around £3,000 per year | £300-800 per infusion (£595 typical in London); programmes £3,400-6,050 |
| How long it takes | Slowest: you must already be in secondary care, and capacity is limited | Referral letter, then assessment (usually online), then treatment; no published waiting time | Usually the fastest door; screening and scheduling are the clinic's own |
| What is included | Infusions within an existing NHS depression pathway | Psychiatrist assessment, three to six infusions over three to six weeks, reviews and maintenance options | Varies widely: bare infusions at one end, full programmes with preparation, dosing and integration therapy at the other |
The NHS route: narrow, real, and worth checking first
Start with the honest baseline: there is no standard NHS ketamine pathway for depression. Racemic ketamine is licensed as an anaesthetic and used off-label as an antidepressant, so NICE has never appraised it for routine commissioning; the related nasal spray esketamine was appraised and not recommended in TA854. If your depression has not responded to treatment, the NHS route the system is built for is a referral to a specialist mental health team — psychiatrists, psychologists, specialist nurses — not a ketamine drip.
But "no standard pathway" is not "nothing". Two doors exist.
The first is NHS-funded treatment at Oxford Health NHS Foundation Trust. Its Interventional Psychiatry Service at the Warneford Hospital states that patients who live in Oxfordshire or Buckinghamshire and are formally referred by a consultant psychiatrist employed by the trust may be considered for treatment funded by the trust itself — on the NHS, in plain terms. The conditions matter: a GP cannot make this referral, you must already be under an Oxford Health consultant, and since February 2024 the service no longer accepts funding via Individual Funding Requests to Integrated Care Boards. Alongside this, the NHS has begun piloting racemic ketamine within existing depression pathways at Oxford Health and Central and North West London NHS Foundation Trust (Magnetar/Blossom reimbursement report, 2025) — limited-capacity programmes reached through NHS referral, not booked directly. If you are already in secondary care in these areas, ask your psychiatrist before you spend a pound privately.
The second door is the same Oxford service on a self-funded basis, open more widely. The mechanics are straightforward: your GP or psychiatrist sends a referral letter, you complete mood monitoring and questionnaires, and the assessment itself usually happens online. Initial treatment is three to six intravenous infusions over three to six weeks; the service reports that about 50% respond well and that most responders relapse at some point and then respond again to maintenance treatment, which can continue for years. The price list is itemised to the pound: £265 per infusion and per initial psychiatrist assessment, £125 per scheduled review, £50 for a preparation session, oral ketamine at £65 per bottle for maintenance — and a blunt warning that you should not start unless you can afford around £3,000 per year. All income funds NHS care within the trust. It is the cheapest supervised ketamine treatment in the country, and it says so without saying so.
The private route: faster, wider, dearer
The private market exists because the NHS gap exists, and on its own terms it works well. Off-label prescribing by a licensed doctor is lawful — ketamine is a Schedule 2 medicine — and independent clinics must be registered with the Care Quality Commission in England or the Scottish and Welsh equivalents. The practical advantages over Oxford are real: no catchment, self-referral at many clinics, faster scheduling, and — at the KAP end of the market — psychotherapy built into the programme rather than left to you.
The prices, from clinics in our UK directory that publish them: Save Minds in London charges £595 per infusion with initial consultation packages of £890-1,340 depending on referral route; Klearwell's ketamine-assisted psychotherapy programme is £6,050 including the £280 initial medical assessment, with boosters at £1,470-2,940; Eulas Clinics' six-week programme starts from £6,000; and The Ketamine Clinic in Norfolk offers its month-long Emerge programme — four dosing sessions plus integration — at £3,400 all-inclusive. The broad UK range is £300-800 per infusion. For how these figures compare across the continent, see our European cost guide.
Set £595 against £265 and the private premium looks steep, but compare like with like. Oxford sells a bare infusion with psychiatric oversight; most private programmes sell a package in which the drug is one component among assessment, preparation, dosing supervision and integration therapy. A fair comparison is course against course: a four-to-six-infusion induction at Oxford costs roughly £1,300-1,900 with assessment and reviews included, against £3,400-6,050 for a private programme with therapy wrapped in. Whether the therapy layer is worth the difference is a genuine clinical question, not a settled one — and a good private clinic will not mind you asking it.
Before paying anywhere: check the clinic's CQC profile and latest rating, check the prescriber on the GMC register, get the full course cost in writing, and ask what maintenance costs after the induction — the long-term figure matters more than the sticker price. No psychiatric screening before payment, guaranteed results, or pressure to prepay long packages are reasons to leave. Our clinic-choice guide has the full checklist.
Spravato: the postcode question
Esketamine nasal spray (Spravato) is licensed UK-wide, and whether the NHS pays for it depends entirely on where you live. In England and Wales, NICE did not recommend it for treatment-resistant depression on cost-effectiveness grounds, and Northern Ireland endorsed the same decision. Scotland went the other way: the Scottish Medicines Consortium accepted esketamine for restricted use under a patient access scheme, so NHS Scotland patients can be assessed through their psychiatrist. South of the border, Spravato is self-pay even inside the NHS: Oxford Health's own price list charges £591 per 56 mg administration and £754 per 84 mg — a useful benchmark for what any private quote should sit near. The full picture, including why NICE said no when most of Europe said yes, is in our UK reimbursement guide.
The third route: trials
If cost is the constraint, the route neither the NHS nor the private clinics will volunteer is research. Trial participation is free by definition — legitimate studies never charge, and many reimburse travel — and the UK runs one of the busiest psychedelic research programmes in Europe: 67 UK-linked studies tracked, 12 active, including ketamine studies alongside the psilocybin pipeline. Screening is strict and enrolment is never guaranteed, so treat it as an option to check rather than a plan to rely on. Our trials guide covers how to search the registries and what participation actually involves.
Frequently asked questions
Can I get ketamine on the NHS for depression?
Mostly no, narrowly yes. There is no routine NHS pathway, but Oxford Health funds treatment for Oxfordshire and Buckinghamshire patients referred by its own consultant psychiatrists, and NHS pilots run at Oxford Health and CNWL. If you are already under a psychiatrist in those areas, ask directly.
Why is the NHS trust's clinic so much cheaper than private ones?
Because it prices at cost — all income funds NHS care within the trust — and because it sells a leaner product: infusion plus psychiatric oversight, without a bundled psychotherapy programme. Private KAP programmes charge more partly because they include more.
Do I need a GP referral?
For Oxford Health, yes — a referral letter from your GP or psychiatrist is required before assessment. Many private clinics accept self-referral, though a written treatment history (every antidepressant tried, with dose, duration and outcome) will serve you well at either door.
Is the £595 London infusion the same treatment as the £265 Oxford one?
Pharmacologically, essentially yes: a monitored intravenous ketamine infusion. The differences are in what surrounds it — location, scheduling speed, consultant time, and whether therapy sessions are part of the package. Compare full course costs in writing, not per-session prices.
Is Spravato available on the NHS?
In Scotland, yes, for treatment-resistant depression under SMC restrictions. In England, Wales and Northern Ireland, no — it is self-pay, at £591-754 per administration even at NHS trust prices.
Sources
- Oxford Health NHS FT: Ketamine TRD service — Interventional Psychiatry Service
- Oxford Health NHS FT: Interventional Psychiatry Service pricing
- NICE TA854: Esketamine nasal spray for treatment-resistant depression — recommendations
- SMC: Esketamine (Spravato) advice — SMC2258
- NHS: Treatment — depression in adults
- Care Quality Commission
- The Burlington Clinic: ketamine therapy cost in London
- Reimbursement Pathways for Psychedelic Therapies in Europe — Magnetar Access × Blossom (2025)
This guide is for general information only and is not medical advice, a diagnosis, or a recommendation of any treatment. Regulations and prices change; always verify a provider's current registration with the CQC or the relevant regulator, confirm fees in writing, and discuss your options with a licensed clinician who knows your history. If you are in crisis, contact your local emergency number or a crisis line immediately.
This guide awaits review by a licensed medical professional.