What Does a Ketamine Therapy Session Actually Look Like?

What Is a Ketamine Therapy Session?

A ketamine therapy session is a single, supervised appointment in which a sub-anesthetic, individually determined dose of ketamine is administered for therapeutic purposes. Ketamine has been FDA-approved as an anesthetic since 1970 and has been on the WHO List of Essential Medicines since 1985.^1,2 Its use for mental health conditions like depression, anxiety, and PTSD represents off-label prescribing by licensed physicians based on medical judgment, which is a widespread and legally accepted practice.³

A single session and a treatment program are not the same thing. One dosing appointment constitutes a session. A program sequences multiple sessions to build cumulative therapeutic benefit. Evidence-based care models deliver ketamine as part of a comprehensive program rather than as a standalone appointment, because sequenced dosing tends to produce more durable results.

What a session looks like in practice varies by treatment modality. Some happen in clinics, some at certified treatment centers, and some at home. The rest of the article explores how sessions differ across modalities, what happens before, during, and after, and how the biological mechanism connects to the felt experience.

What Are the Different Types of Ketamine Therapy Sessions?

The term "ketamine therapy session" covers several distinct treatment models. Each uses the same medicine but differs in setting, route of administration, level of in-session support, and what is built around the dose.

• IV ketamine infusion (clinic-based): A slow, continuous intravenous drip administered over 40 to 60 minutes in a medical clinic. Medical staff monitor vitals throughout. Integration support varies by clinic and is often not built into the session itself.
• IM ketamine injection (clinic-based): A single intramuscular injection administered in a clinic. Effects peak within minutes of the injection, and the overall appointment is typically shorter than an IV infusion. Monitoring and integration support vary by practice.
• Esketamine nasal spray (Spravato): A self-administered nasal spray using esketamine, the S-enantiomer of ketamine. You take the medicine under provider supervision at a certified treatment center enrolled in the Spravato REMS program. Spravato is the only FDA-approved ketamine-based product for treatment-resistant depression. Each visit includes a required two-hour in-clinic observation period.
• Ketamine-assisted psychotherapy (KAP): Dosing, typically oral or sublingual, with a trained therapist actively present throughout. The therapist guides the experience in real time and integrates therapeutic dialogue during or immediately after the dosing window. KAP is suited for people who want real-time psychotherapeutic support during the session itself.
• At-home ketamine therapy programs: Sessions take place in your own home using sublingual tablets or subcutaneous injection, with app-guided protocols, a required peer treatment monitor present, and remote medical oversight. The dosing appointment is embedded within a broader program that includes provider consults, guide coaching, integration support, and community resources.

Each modality represents a different medical approach for different needs. The right choice depends on individual goals, health profile, and preferences around setting and support. The medicine works the same way regardless of how it is delivered.

How Does Ketamine Therapy Work in a Session?

Regardless of modality or route of administration, ketamine produces its therapeutic effects through the same biological cascade. Understanding what happens in the brain helps clarify how that connects to the felt experience during a session.

Ketamine is an NMDA receptor antagonist. It temporarily modulates glutamate signaling, which triggers a surge of glutamate release, stimulates brain-derived neurotrophic factor (BDNF) production, and promotes synaptic plasticity.⁴ The resulting cascade opens a post-session neuroplasticity window during which the brain is more receptive to forming new neural connections and shifting entrenched thought patterns.

During the session, many people describe the experience as dreamlike, expansive, or deeply reflective. These perceptual and emotional shifts are outputs of the same biological process that drives neuroplasticity. The dissociative quality of the experience is therapeutically meaningful within a supervised setting, not a side effect to be tolerated. Common experiential features include:

• Dreamlike or expansive awareness: A feeling of vastness or floating.
• Shifts in time perception: Minutes may feel much longer or shorter than usual.
• Closed-eye visual imagery: Seeing colors, shapes, or memories.
• Emotional openness or release: Accessing difficult emotions with less fear or resistance.
• Temporary detachment from habitual thought patterns: A break from repetitive rumination or anxiety loops.

Peer-reviewed research has established that ketamine produces rapid-acting effects on mood, often within hours or days of administration, in contrast to traditional antidepressants which typically require weeks to take effect. More durable benefits typically develop over a series of sessions as the neuroplasticity window is repeatedly engaged and paired with integration practices.

How Do You Prepare for a Ketamine Therapy Session?

What you need to do before a session depends on where and how it takes place, and the specifics differ more than most people expect.

• IV and IM ketamine (clinic-based): Preparation centers on logistical planning. You will book the appointment, arrange transportation to and from the clinic since you cannot drive afterward, follow any pre-session fasting or medication instructions from the provider, and complete pre-session medical checks like blood pressure and heart rate.
• Esketamine (Spravato): Similar logistical planning applies. The certified center will supply pre-visit instructions. You must arrange transportation, as you cannot drive until the day after treatment.
• Ketamine-assisted psychotherapy (KAP): Preparation typically includes intention-setting work with the therapist beforehand. You might discuss therapeutic goals, review what to expect during the dosing experience, and establish a framework for integration afterward.
• At-home ketamine therapy programs: Preparation is more involved because you are responsible for your own environment. The steps include:
  • Select a program: As described above, Mindbloom offers programs of 6, 12, or 18 sessions, each beginning with a comprehensive medical evaluation.
  • Secure a peer treatment monitor: Arrange for your peer treatment monitor to be present (see modality overview above).
  • Prepare your environment: Set and setting matter. Choose a quiet, comfortable space. Prepare your eye mask, headphones, and any items from your experiential toolkit, such as Mindbloom's Bloombox.
  • Use app-guided preparation materials: Complete pre-session preparation content through the app, including intention-setting, what to expect, and practical session logistics.

Preparation is part of the therapeutic process, not just logistics. Intentional preparation supports a more meaningful session experience regardless of modality.

What Happens During a Ketamine Therapy Session?

Each modality follows a different protocol for how the medicine is administered, how long the session lasts, and what support is present.

• IV ketamine infusion: The infusion runs over 40 to 60 minutes. You sit or recline in a treatment room while the experience typically begins within minutes of the drip starting.
• IM ketamine injection: A single intramuscular injection, usually in the upper arm or thigh. The overall appointment is shorter, though monitoring continues for a period after the injection.
• Esketamine (Spravato): You self-administer the nasal spray as described above. Effects typically begin within minutes, followed by the required two-hour observation period.
• Ketamine-assisted psychotherapy (KAP): The therapist is actively present throughout. Dosing method varies, often oral or sublingual. The therapist may guide the experience with verbal prompts. Sessions may be longer than other modalities to accommodate real-time therapeutic work.
• At-home ketamine therapy: The at-home session follows a specific sequence:
  • Administration: Take the medicine as prescribed. For sublingual tablets, hold them between the cheeks and gums for 7 minutes before spitting out the residual. For subcutaneous injection, administer a small insulin-needle injection into the abdomen. Effects typically begin within 10 to 15 minutes for tablets and about 5 minutes for subcutaneous injection.
  • The dosing experience: Put on an eye mask and headphones with app-delivered soundscapes. Lie down in your prepared space with the peer treatment monitor nearby. Engage with the app-guided protocol for the 45-to-60-minute dosing experience.
  • Monitoring: Your peer treatment monitor remains nearby throughout. Remote medical oversight is available. The app guides the session structure and timing.

What differs across modalities is the setting, the route of administration, and the level and type of support built around the dose.

What Happens After a Ketamine Therapy Session?

What happens after the dosing window closes depends on the treatment model you've chosen.

• IV and IM ketamine (clinic-based): A brief post-session period in the clinic until you feel grounded. Transportation home must be arranged, as you cannot drive. As noted above, integration support varies by clinic. Most IV and IM providers do not include structured follow-up.
• Esketamine (Spravato): A two-hour in-clinic observation period is required. You cannot drive until the day after treatment. Integration support depends on the prescribing physician.
• Ketamine-assisted psychotherapy (KAP): Integration is a core part of the model. The therapist may continue therapeutic work in the same session or schedule dedicated follow-up appointments to process the experience and apply insights.
• At-home ketamine therapy: The post-session experience includes several components:
  • Reorientation: Your monitor stays until you feel grounded. The transition back to baseline happens in the comfort of your own space.
  • Reflection: App-guided reflection prompts and journaling help you capture insights from the session while the neuroplasticity window is open.
  • Guide coaching: Scheduled one-on-one guide coaching sessions support integration of the experience into daily life and help you apply insights toward your therapeutic goals.
  • Group Integration Circles: Unlimited access to group integration sessions provides community support and shared learning from others on similar journeys.

Follow-up support, whether through coaching, group integration circles, or self-directed reflection, is where a single dosing experience turns into lasting change.

How Much Does a Ketamine Therapy Session Cost?

The cost of a ketamine therapy session depends heavily on the treatment modality and the provider. IV ketamine infusions typically cost between $400 and $1,000 per session, and they are rarely covered by insurance. Spravato is can be covered by insurance, but patients must still account for copays and the time required for the two-hour in-clinic observation period.

Mindbloom's at-home ketamine therapy starts at $165 per guided session for an 18-session program for new clients, with programs billed in monthly installments. Returning clients pay as little as $129 per session with an 18-session program. All programs are HSA/FSA eligible, and partial insurance reimbursement may be available.

Conclusion

Every ketamine therapy session shares the same biological basis: a sub-anesthetic dose that temporarily modulates NMDA signaling and opens a post-session neuroplasticity window. But the experience of a session varies across treatment models given the differences in setting, route of administration, and the structure built around the dose. Durable change typically develops across a series of sessions paired with integration practices, which is why most evidence-based care models deliver ketamine as part of a defined program rather than as a single appointment. At-home ketamine therapy is designed around that arc, with comfort, clinical structure, and integration built into the program. To see whether it is the right fit for your needs, the next step is a brief eligibility assessment. Book My Breakthrough →

Important Safety Information

Ketamine is not FDA-approved for PTSD, depression, or anxiety. Common side effects include dissociation, increased blood pressure, nausea, dizziness, and cognitive impairment.⁸ Ketamine has abuse potential and is not appropriate for patients with uncontrolled hypertension, psychotic disorders, or substance use disorders.⁷ Do not drive or operate machinery until the day after treatment. Individual results may vary. Full safety information: www.mindbloom.com/safety-information

Off-Label Use Disclosure

Ketamine is FDA-approved only as an anesthetic. Use for mental health conditions represents off-label prescribing by licensed clinicians based on clinical judgment. Schedule III Controlled Substance - DEA regulations apply.