Am I a Candidate for TMS Therapy?

If you are an adult who has tried two or more antidepressants without enough relief, you are probably a candidate for TMS. That is the main criterion. The rest is safety screening and insurance.

You are likely a candidate if

• You are an adult with depression
• Two or more antidepressants have not given you enough relief, each at a full dose for six to eight weeks
• You do not have non-removable metal in or near your head
• You can come in five days a week for several weeks

TMS is also FDA-cleared as an add-on for adults with OCD, and for adolescents ages 15 to 21 with depression. See TMS for OCD.

You cannot have TMS if

• You have metal implants or devices in or near your head that cannot be removed, such as aneurysm clips, stents, or cochlear implants

Dental fillings, braces, and most orthopaedic hardware elsewhere in the body are fine.

Needs a closer look, not an automatic no

• A seizure history or a condition that lowers the seizure threshold
• Medications that lower the seizure threshold
• Pregnancy. TMS is often considered specifically because it avoids medication exposure
• A pacemaker or other implanted device below the neck

What insurance usually wants to see

Most plans cover TMS for treatment-resistant depression with prior authorisation. Typical requirements:

• A diagnosis of major depressive disorder
• Documentation of failed antidepressant trials, often two to four
• Sometimes a trial of psychotherapy

We verify your benefits and submit the authorisation before you start. See fees and insurance and TMS cost in California.

What the commitment actually looks like

Sessions run five days a week for about six weeks. You sit in a chair, awake, and drive yourself home afterward. There is no sedation and no recovery time. Standard sessions run around 20 minutes, and three-minute theta-burst protocols are also available.

Across 307 patients at 42 clinics, 58 percent improved and 37 percent reached remission (Carpenter 2012).

How to find out for certain

Candidacy is decided at a consultation, not from a checklist. Bring a list of every antidepressant you have tried, the dose, and how long you took it. That determines both clinical fit and whether insurance will approve it.

Full details on our TMS therapy page, and TMS side effects if you want the safety picture first.

Common questions

Who is a candidate for TMS?

Adults whose depression has not responded to at least two antidepressant trials.

Who cannot have TMS?

People with non-removable metal or implanted devices in or near the head.

Do I stop my antidepressant?

No. Most people stay on it during TMS.

Does insurance cover it?

Usually, for treatment-resistant depression, with prior authorisation.

Can I drive myself home?

Yes. No sedation, no recovery period.

References

• Carpenter LL, Janicak PG, Aaronson ST, et al. Transcranial magnetic stimulation for major depression: a multisite, naturalistic, observational study of acute treatment outcomes in clinical practice. Depress Anxiety. 2012;29(7):587-596. Journal

Medically reviewed by Nefretiri Abat, J.D., PMHNP-BC, board-certified Psychiatric-Mental Health Nurse Practitioner.