TMS vs. Ketamine Therapy: Comparing Efficacy & Experience

When considering alternative treatments like esketamine (Spravato) and ketamine treatment, many patients who come to Lumin Health describe standing at a crossroads: they’ve tried several antidepressants, they’re still struggling, and now they’re choosing between alternative treatments like transcranial magnetic stimulation (TMS) and ketamine therapy. In clinical practice, it’s common to see people weighing factors like speed of relief, comfort with different states of mind, and practical questions about access. 

This guide explains how TMS and ketamine treatments differ, what sessions feel like, how coverage works, and how people decide what to explore first.

Neither treatment promises a cure-all for depression – but both may create conditions for relief. What matters most is what feels most realistic to you. 

How each treatment works (magnetic stimulation vs ketamine-induced neuroplasticity)

TMS (transcranial magnetic stimulation) uses noninvasive, focused magnetic pulses to stimulate specific brain regions involved in mood regulation. These changing magnetic fields are designed to induce tiny electrical currents in the cortex (the outermost layer of brain cells). Over repeated sessions, that patterned stimulation can help strengthen or rebalance circuits that support emotional regulation. If it helps, picture your brain like a forest: well‑worn footpaths can become ruts during depression. TMS aims to encourage healthier routes in the foliage by nudging the system again and again until new paths become more walkable and areas that regulate emotional content can “speak” to areas that generate emotional content.

Ketamine therapy works through a different pathway. Ketamine doses block NMDA receptors, which increases glutamate signaling at AMPA receptors and sets off cascades that may boost the release of a growth hormone in the brain called “BDNF” which leads to the formation of new connections throughout the entire brain, called “synaptogenesis.” This pathway can achieve the same impact on the “forest” analogy as TMS, but through a different mechanism and in a more global manner.^[1,2] Many clinicians describe this as opening a short “neuroplasticity window” when learning and behavior change may come a bit more easily. At Lumin Health, ketamine treatment is delivered in two broad ways:

• Esketamine (Spravato): an FDA‑approved intranasal medicine given only in a certified Spravato site under observation.
• Off‑label ketamine: offered as intramuscular injections (IM) dosing in appropriately equipped clinics. Dosing, frequency, and monitoring are clinician‑guided based on diagnosis and history.

Response rates and durability of ketamine treatment and TMS

When comparing TMS and ketamine therapy, it helps to define terms:

• Response usually means a clinically meaningful reduction in symptoms, not full remission.
• Remission means symptoms are minimal or absent for a period of time.

Across both clinical research and in-situ care delivery, both TMS and ketamine treatment have shown meaningful benefit for some patients with treatment‑resistant depression. TMS often builds gradually over weeks, while some patients feel relief from ketamine for depression within hours to days.^[3,4] Durability varies: many need a maintenance plan after the initial series for either modality. 

Maintenance courses: 

• Spravato treatment: maintenance is built into the FDA-approved label with a taper in frequency after the first month.^[5,6] 
• Off‑label ketamine therapy: maintenance can range from every few weeks to less often, depending on how you’re doing. 
• TMS: maintenance or repeat courses are sometimes used if symptoms return providing insurance agrees to continue to cover it.

The honest headline is that neither option helps everyone, and outcomes depend on your history, co‑occurring conditions, and support around you. What clinicians look for is the pattern – are you getting more good days, functioning better, and feeling more like yourself.

What the session feels like (no change in subjective experience with TMS; perceptual shifts common in ketamine)

TMS session experience

• You’re awake and seated with the TMS device sitting just next to you. A coil rests on your scalp and delivers magnetic pulses to a targeted area.
• Sensations can include tapping on the scalp and brief muscle twitches in the forehead or jaw. Many people read or listen to music.
• Sessions are typically 20–40 minutes, five days a week during the acute phase. There is no change in consciousness or observed experience. Most patients drive themselves to and from visits, and can continue their day-to-day lives immediately before and after sessions.

Ketamine treatment session experience

• Esketamine (Spravato) is administered in a Spravato clinic with blood pressure checks and observation for about two hours. Because of transient perceptual changes, you’ll need a ride home. Many patients describe a sense of distance from ordinary thoughts, shifts in time perception, or a gentle “floaty” quality. Staff remain with you and monitor throughout Spravato treatment.
• With off‑label ketamine therapy, monitoring is similar and occurs in-clinic. Doses are individualized and effects usually resolve the same day. You should not drive until the next day.

Some patients find that TMS is preferable as it involves no alteration in subjective experience. Others value the reflective space that ketamine therapy can create. If you work with an existing behavioral support-based care team, planning focused psychotherapy or behavioral support in the day or two after dosing may help you use that neuroplasticity window.

Access & logistics: insurance, scheduling, transportation, maintenance

Coverage

• TMS is FDA-approved and is commonly covered for treatment‑resistant depression when criteria are met.
• Esketamine (Spravato) is FDA‑approved for treatment‑resistant depression and is often covered when delivered in a certified Spravato clinic.^[7,8] Coverage still varies by plan and payor.
• Off‑label ketamine therapy is less consistently covered. Some patients are able to use out‑of‑network benefits or pay out of pocket.

Scheduling

• TMS: most programs schedule five sessions per week for six to eight weeks.
• Spravato treatment: typically twice weekly for four weeks, then weekly for four weeks, then weekly or every other week. From there, the Spravato administrator will work with you to decide an ongoing frequency.^[5] Each visit lasts about two hours in‑clinic.
• Off‑label ketamine: many induction plans start with two sessions per week for two to four weeks, then extend intervals based on response. Due to the off-label nature, there is an increased flexibility in the ketamine therapy protocol.

Transportation

• TMS patients usually can drive themselves.
• Ketamine treatment patients cannot drive for the remaining day after dosing. Plan a ride, rideshare, or support person for pickup after ketamine/Spravato treatment.

Decision drivers: safety, values, pace of relief, agency

In clinical practice, it’s common to see these factors shape a decision:

1) Safety and medical history

• Ketamine treatment is a more “systemic” treatment – it impacts more of the brain and body. As a result, greater medical clearance is needed than with TMS. 

2) Pace of relief vs comfort with altered experience

• If rapid symptom reduction is a pressing goal, ketamine therapy may offer earlier changes for some people. If you prefer no changes in consciousness, TMS may feel more aligned.

3) Practical realities

• Time off work, transportation, and childcare influence feasibility. TMS requires frequent, but shorter visits. Spravato treatment requires fewer weekly visits but longer in‑clinic stays and a ride home. Off‑label ketamine therapy varies by clinic.

4) Ongoing supports

• Many patients benefit from regular psychotherapy or skills‑based care alongside either option. Plan sessions during the neuroplasticity window after ketamine treatment, or use the steady cadence of TMS to reinforce behavioral changes.

5) Personal goals and values

• Some patients want a calm, steady path without perceptual changes. Others feel open to a reflective ketamine experience. Neither is more “right” — what matters most is what feels most possible to you.

Choosing your next step at Lumin Health

Many patients start with the option that best matches their values and life logistics. If you’re leaning toward TMS, you may value a non‑experiential approach with no substantial changes to your schedule for the rest of the day after treatment. If you’re leaning toward ketamine therapy, you may be prioritizing the possibility of the reflective space that some people find helpful, and a treatment whose onset is often measured in days rather than weeks, so you learn sooner whether it is helping. Either path can be paired with psychotherapy or skills practice. At Lumin Health, it is our promise that we will meet you where you are.

Lumin Health is here to provide balanced education about ketamine and Spravato and careful monitoring – whether you pursue Spravato treatment in our Spravato-certified facilities, off‑label ketamine therapy, or TMS with a trusted partner. If you’re researching ketamine for depression, we hope this clears some space for a decision that feels like yours.

References

1. Li N, Lee B, Liu RJ, et al. mTOR-dependent synapse formation underlies the rapid antidepressant effects of NMDA antagonists. Science. 2010;329(5994):959-64. PubMed
2. Björkholm C, Monteggia LM. BDNF - a key transducer of antidepressant effects. Neuropharmacology. 2016;102:72-9. PubMed
3. Ritter P, Findeis H, Bauer M. Ketamine in the Treatment of Depressive Episodes. Pharmacopsychiatry. 2020;53(2):45-50. PubMed
4. Berman RM, Cappiello A, Anand A, et al. Antidepressant effects of ketamine in depressed patients. Biol Psychiatry. 2000;47(4):351-4. PubMed
5. Daly EJ, Trivedi MH, Janik A, et al. Efficacy of Esketamine Nasal Spray Plus Oral Antidepressant Treatment for Relapse Prevention in Patients With Treatment-Resistant Depression: A Randomized Clinical Trial. JAMA Psychiatry. 2019;76(9):893-903. PubMed
6. Wajs E, Aluisio L, Holder R, et al. Esketamine Nasal Spray Plus Oral Antidepressant in Patients With Treatment-Resistant Depression: Assessment of Long-Term Safety in a Phase 3, Open-Label Study (SUSTAIN-2). J Clin Psychiatry. 2020;81(3). PubMed
7. Popova V, Daly EJ, Trivedi M, et al. Efficacy and Safety of Flexibly Dosed Esketamine Nasal Spray Combined With a Newly Initiated Oral Antidepressant in Treatment-Resistant Depression: A Randomized Double-Blind Active-Controlled Study. Am J Psychiatry. 2019;176(6):428-438. PubMed
8. Ionescu DF, Fu DJ, Qiu X, et al. Esketamine Nasal Spray for Rapid Reduction of Depressive Symptoms in Patients With Major Depressive Disorder Who Have Active Suicide Ideation With Intent: Results of a Phase 3, Double-Blind, Randomized Study (ASPIRE II). Int J Neuropsychopharmacol. 2021;24(1):22-31. PubMed
9. Short B, Fong J, Galvez V, et al. Side-effects associated with ketamine use in depression: a systematic review. Lancet Psychiatry. 2018;5(1):65-78. PubMed
10. Jelen LA, Young AH, Stone JM. Ketamine: A tale of two enantiomers. J Psychopharmacol. 2021;35(2):109-123. PubMed
11. Zhang Y, Ye F, Zhang T, et al. Structural basis of ketamine action on human NMDA receptors. Nature. 2021;596(7871):301-305. PubMed

You've read the science. Now take the next step.

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Frequently Asked Questions

What's the main difference between how TMS and ketamine therapy work?

TMS uses magnetic pulses to stimulate specific brain regions involved in mood, without changing consciousness. Ketamine therapy works through the glutamate system, triggering brain changes that support new neural connections across a broader area, along with temporary perceptual shifts. Both aim to help rigid, depression-linked brain circuits become more flexible.

Can I do both TMS and ketamine treatment?

Sometimes, though usually sequentially rather than on the same day. Some people start with one treatment while planning the other for later, based on how they respond. Your care team coordinates the timing with you.

How fast do TMS and ketamine therapy work compared to each other?

TMS improvements tend to build gradually, often becoming clearer over the first few weeks of a course. Ketamine therapy tends to act faster, with some people noticing changes within hours to days of dosing. Both approaches may need an ongoing maintenance plan to hold on to gains, and individual results vary.

Is esketamine (Spravato) the same as ketamine?

Related, but not identical. Esketamine (Spravato) is the more active, isolated half of the ketamine molecule, given as an FDA-approved nasal spray at a certified practice. Off-label ketamine uses a different formulation and route, and isn't FDA-approved for depression, though it's used in clinical practice.

Can I work or drive after a TMS or ketamine session?

Most people can drive and resume normal activities right after TMS. After esketamine (Spravato) or off-label ketamine, you can't drive until the next day, so plan a ride home. Whether you can work afterward depends on how you personally respond and recover.