Ketamine Therapy BC: What the Research Actually Says (2026)
Last Updated: July 2026 Author: BCMedicalAccess.ca Editorial Team — Reviewed for accuracy
BCMedicalAccess.ca is an information resource only. We do not provide medical advice, diagnoses, or referrals. Always consult a licensed physician before making healthcare decisions. Ketamine therapy involves significant medical risks and must be administered under physician supervision.
Ketamine has moved from operating rooms and emergency departments into mental health treatment over the past decade. In BC, a small number of private clinics now offer ketamine infusions for treatment-resistant depression, PTSD, and certain chronic pain conditions. This guide covers what the evidence actually shows, what it costs, and how it compares to other treatment options.
What Is Ketamine Therapy?
Ketamine is a dissociative anesthetic that has been used in medicine since the 1960s. At sub-anesthetic doses administered intravenously, it produces rapid antidepressant effects — often within hours to days, compared to weeks for traditional antidepressants.
The mechanism is different from SSRIs and SNRIs. Ketamine acts primarily on NMDA glutamate receptors, not serotonin. This distinct mechanism is why it can work for patients who have not responded to multiple antidepressants.
Health Canada status: Ketamine is approved in Canada as an anesthetic. Its use for depression and mental health conditions is off-label but legally permitted when administered by a licensed physician.
Esketamine (Spravato): A nasal spray form of esketamine (a ketamine derivative) received Health Canada approval for treatment-resistant depression in 2020. It is administered in a clinical setting under observation.
What Does the Research Show?
The evidence base for ketamine in treatment-resistant depression is substantial but not without limitations.
What the Research Supports
Rapid antidepressant effect: Multiple randomized controlled trials and meta-analyses confirm that a single IV ketamine infusion produces significant antidepressant effects within 24 hours in 50–70% of treatment-resistant patients. This is the most robust finding.
Treatment-resistant depression (TRD): Ketamine is most studied and most effective for patients who have failed 2+ adequate antidepressant trials. The evidence here is strongest.
Suicidal ideation: Several studies show rapid reduction in acute suicidal ideation following ketamine infusion, which has clinical significance for crisis situations.
PTSD: Emerging evidence suggests benefit, but the evidence base is smaller and less consistent than for depression.
Chronic pain: Ketamine infusions are used for complex regional pain syndrome (CRPS) and other refractory pain conditions, with moderate evidence.
What the Research Does Not Fully Support
Long-term durability: The antidepressant effect of a single infusion typically lasts 1–3 weeks. The evidence for sustained remission with repeated infusions is less robust, and optimal maintenance protocols are not established.
Comparison to other treatments: Head-to-head trials comparing ketamine to ECT (electroconvulsive therapy) and TMS are limited. ECT remains the most evidence-supported intervention for severe TRD.
Addiction risk: Ketamine has abuse potential. Long-term use is associated with ketamine cystitis (bladder damage) and cognitive effects. The risk in controlled clinical settings is lower than recreational use, but it is not zero.
Ketamine vs TMS: How Do They Compare?
| Factor | Ketamine Infusion | TMS (Transcranial Magnetic Stimulation) |
|---|---|---|
| Mechanism | NMDA receptor antagonism | Magnetic pulses to prefrontal cortex |
| Speed of response | Hours to days | 2–4 weeks |
| Evidence for TRD | Strong (rapid effect) | Strong (sustained effect) |
| Health Canada approval | Off-label (anesthetic) | Approved for depression |
| Cost per treatment | $500–$1,200 | $200–$400 |
| Full course cost | $3,000–$7,200 (6 infusions) | $4,000–$8,000 (20–30 sessions) |
| Supervision required | Physician, monitored | Technician supervised |
| Dissociative effects | Yes (during infusion) | No |
| Addiction potential | Yes (low in clinical use) | None |
| Maintenance | Repeat infusions needed | Maintenance sessions available |
When ketamine may be preferred: Acute suicidal ideation, need for rapid response, prior TMS non-response.
When TMS may be preferred: Preference to avoid dissociative experience, concerns about ketamine tolerance, longer-term maintenance.
Ketamine Therapy Cost in BC (2026)
Ketamine therapy is not covered by BC MSP. All costs are out-of-pocket.
| Service | Typical Cost |
|---|---|
| Initial psychiatric assessment | $300–$600 |
| Single IV ketamine infusion | $500–$1,200 |
| Standard induction course (6 infusions) | $3,000–$7,200 |
| Maintenance infusion | $500–$1,000 |
| Esketamine (Spravato) nasal spray session | $400–$800 |
Some extended health plans cover psychiatric assessments. The infusions themselves are rarely covered. A few private insurers have begun covering esketamine specifically — check your policy.
What to Expect During Ketamine Infusion
Before treatment:
- Psychiatric evaluation to confirm diagnosis and rule out contraindications
- Medical screening (cardiovascular history, blood pressure, substance use history)
- You must arrange transportation — you cannot drive after an infusion
During the infusion:
- IV access is established; the infusion typically runs 40–60 minutes
- You will experience dissociative effects: altered perception, floating sensation, visual distortions
- Vital signs are monitored throughout
- Most patients describe the experience as unusual but not distressing; some find it uncomfortable
- A therapist or integration specialist may be present at some clinics
After the infusion:
- Effects wear off within 1–2 hours
- You should rest for the remainder of the day
- Many patients report mood improvement within 24 hours
- Some experience transient nausea, headache, or fatigue
Who Is Not a Candidate for Ketamine Therapy?
Ketamine therapy is not appropriate for everyone. Absolute and relative contraindications include:
- Active psychosis or schizophrenia spectrum disorder
- Uncontrolled hypertension
- History of ketamine or substance use disorder
- Severe cardiovascular disease
- Pregnancy
- Certain thyroid conditions
A thorough medical and psychiatric evaluation is essential before treatment.
Key Takeaways
- Ketamine has strong evidence for rapid antidepressant effects in treatment-resistant depression
- It is off-label in Canada but legally administered by licensed physicians
- Cost in BC: $500–$1,200 per infusion; a standard 6-infusion course runs $3,000–$7,200
- Not covered by BC MSP
- Durability of effect is the main limitation — maintenance infusions are often needed
- TMS is a reasonable alternative with different trade-offs (slower onset, no dissociative effects, no addiction risk)
- Requires physician supervision and psychiatric evaluation
For a directory of ketamine therapy clinics in BC with contact information and pricing, see our Ketamine Therapy BC guide.
This article is for informational purposes only. BCMedicalAccess.ca does not provide medical advice. Ketamine therapy involves significant medical risks and must only be pursued under the supervision of a licensed physician.