How Long Do TMS Results Last? A California Guide to Follow-Up Care

How Long Do TMS Results Last?

Transcranial magnetic stimulation (TMS) is a non-invasive treatment most often used for major depressive disorder. It was cleared by the FDA for major depressive disorder in 2008, and for depression with comorbid anxiety in 2021.

A common question after completing treatment is how long the benefits will last. There is no single answer. Some people continue to feel well for a long time after a course of TMS, while others notice symptoms returning sooner and may need further support.

TMS is not usually thought of as a permanent cure for depression. Depression can be a recurring condition, influenced by health, stress, sleep, relationships, work, substance use, medication changes and other factors. A helpful response to TMS can still be meaningful even if symptoms later return. If relapse happens, it does not mean the original treatment failed.

The most useful approach is to discuss follow-up before the initial course ends. A clinician can help you recognise changes early and agree on a plan for maintenance care, monitoring or possible re-treatment.

What happens after a standard course of TMS?

A standard TMS course often involves around 36 weekday sessions over six to nine weeks. The treatment team will normally review symptoms during the course and assess your progress towards the end.

After the final session, follow-up arrangements vary between clinics and patients. Some people return to the clinician who referred them for TMS, while others remain in contact with the TMS provider. You may also continue seeing a psychiatrist, GP, therapist or counsellor.

Your post-treatment plan may include:

• A review of mood, anxiety, sleep and daily functioning
• Ongoing medication management where appropriate
• Talking therapy or other psychological support
• A plan for maintaining routines that support recovery
• Clear guidance on who to contact if symptoms begin to return
• A discussion about whether maintenance TMS or a later re-treatment course could be suitable

The purpose of follow-up is not to assume that you will relapse. It is to make sure there is a practical route back to support if you need it.

Durability of response: why experiences differ

The duration of benefit after TMS differs from person to person. It may depend on the pattern and severity of depression before treatment, how fully symptoms improved, whether there are ongoing stressors, and what support continues after the course.

For some people, the main change may be a reduction in the intensity or frequency of depressive symptoms. Others may experience a more substantial remission, meaning symptoms are absent or minimal. Both can be valuable outcomes, but they may lead to different follow-up needs.

It is also important to consider changes beyond mood scores. You may notice that you are sleeping more regularly, returning to work or study, seeing friends more often, finding daily tasks easier, or feeling better able to use coping strategies. Tracking these practical signs can make it easier to identify whether your wellbeing is stable over time.

A follow-up conversation should cover the whole picture, not only whether you feel “better” or “worse” on a particular day.

Understanding relapse after TMS

Relapse means depressive symptoms return after a period of improvement. It can happen after any depression treatment, including medication, therapy and TMS.

Symptoms do not always return suddenly. Early changes may include:

• Lower motivation or less enjoyment in usual activities
• Disturbed sleep or sleeping much more than usual
• Increasing isolation from friends, family or work
• Reduced concentration and decision-making
• More anxiety, irritability or hopelessness
• Changes in appetite, energy or personal care
• Thoughts that life is not worth living

These signs can also have other causes. However, it is generally better to raise concerns early rather than waiting until symptoms become severe.

If you have thoughts of harming yourself, feel unable to stay safe, or are in immediate danger, seek urgent help through emergency services or a crisis service. Your treating clinician can also advise on local urgent mental health support in California.

Maintenance TMS: what it means

Maintenance TMS refers to additional sessions given after an initial treatment course, with the aim of helping preserve improvement or responding to early symptom changes.

There is no universal maintenance schedule. Some people may have no further TMS sessions after their acute course. Others may discuss occasional sessions, a short series of sessions at times of increased symptoms, or another full course if depression returns.

Whether maintenance treatment is considered will depend on factors such as:

• Your response to the first course of TMS
• Previous episodes of depression and relapse patterns
• Other treatments you are using
• Your preferences and practical circumstances
• Clinical assessment of your current symptoms
• Your insurer’s requirements, if you are using insurance

It is worth asking a provider how they approach follow-up before beginning treatment. Clinics may differ in how they monitor patients after the acute course and in what they recommend when symptoms return.

Maintenance TMS should be planned with a qualified clinician rather than arranged solely in response to a difficult week or temporary stress. A review can help distinguish a brief fluctuation from a more significant recurrence of depression.

Re-treatment when symptoms return

If TMS helped previously and depression later returns, re-treatment may be discussed. This means another course of TMS, often based on the previous treatment plan but adapted if clinically appropriate.

A clinician may review what happened after the first course, including how long improvement lasted, whether medication or life circumstances changed, and whether there were any new medical issues. They may also consider other treatment options alongside or instead of TMS.

Re-treatment is not an indication that you have done something wrong. Depression commonly requires ongoing management. The aim is to respond thoughtfully to symptoms rather than treat recurrence as a personal failure.

If you are considering re-treatment, ask practical questions such as:

• What assessment is needed before restarting?
• Would the proposed schedule be similar to my earlier course?
• Will my medication or therapy plan be reviewed as well?
• What records from my previous TMS course are needed?
• How will progress be measured?
• What are the likely insurance authorisation steps?

Planning follow-up care in California

California has a large number of TMS providers, but access can still depend on where you live, your work or caring responsibilities, transport, and insurance network. TMS Therapy California currently lists 382 published clinics, including listings in Los Angeles, San Diego, Carlsbad, Sacramento, San Jose, Long Beach, Aliso Viejo, Chula Vista, Simi Valley, Roseville, Irvine and Davis.

For follow-up care, location matters. If you might need maintenance sessions or a future re-treatment course, consider whether the clinic is realistically accessible over time. This may be especially relevant if your original course required frequent weekday appointments.

Before treatment ends, consider making a written follow-up plan. It could include:

• The name and contact details of your TMS clinic
• Your psychiatrist, GP or mental health prescriber’s details
• A list of early warning signs specific to you
• Steps you will take if symptoms begin to worsen
• Your current medicines and any planned reviews
• Therapy, peer support or trusted personal contacts
• Urgent and emergency support details

You may also want to check how your coverage works for follow-up treatment. Carriers commonly seen in California include Blue Shield of California, Anthem Blue Cross of California, Kaiser Permanente, UnitedHealthcare, Aetna, Cigna, Health Net, Medi-Cal managed care plans, Medicare through Noridian Jurisdiction E and TRICARE West. Coverage and authorisation requirements can vary by plan, treatment history and the reason for care. Confirm benefits directly with your insurer and the clinic before assuming that maintenance or re-treatment will be covered.

Questions to ask at your final TMS appointment

A final review is a good time to make decisions before you are under pressure from returning symptoms. Questions may include:

• How would you describe my response to treatment?
• What symptoms should prompt me to get in touch?
• Who should I contact first if my mood worsens?
• Should I continue with medication, therapy or both?
• Do you recommend routine follow-up appointments?
• Under what circumstances would maintenance TMS be considered?
• If I need TMS again, what might the process involve?
• Can you provide a treatment summary for my other clinicians?

Keep a copy of your treatment summary where you can find it. It may be useful if you move, change insurance, see a new clinician or seek re-treatment later.

Getting help in California

Use the TMS Therapy California clinic listings to find providers in your area, review the insurance guide before discussing coverage, and visit the contact page for help using the directory.

This is educational information, not medical advice.