By the clinical team at Next Step Psychiatry • Lilburn, GA
What Is TMS Therapy?
Transcranial Magnetic Stimulation (TMS) is an FDA-approved, non-invasive treatment for depression that uses magnetic pulses to stimulate underactive regions of the brain. Unlike medication, TMS targets the prefrontal cortex directly—the area of the brain most affected by depression—without sending chemicals through your entire body. No anesthesia, no sedation, no systemic side effects.
TMS has been available since 2008 and has been refined significantly. The latest protocols, including Stanford Neuromodulation Therapy (SNT), can produce results in as few as five days of intensive treatment.
How Does TMS Work?
During a TMS session, you sit in a comfortable chair while a coil is placed against your scalp, usually on the left side of your head. The coil generates brief magnetic pulses—similar in strength to an MRI—that pass through your skull and stimulate neurons in the prefrontal cortex. These pulses increase neural activity in brain regions that depression has quieted.
Over the course of treatment, TMS essentially “retrains” your brain’s activity patterns. Neuroimaging studies show that TMS normalizes blood flow and metabolic activity in depressed brain regions, and these changes correlate with symptom improvement.
Who Is a Good Candidate?
TMS is primarily recommended for adults with major depressive disorder who haven’t responded adequately to at least one antidepressant medication. It’s also FDA-cleared for OCD and has shown promise for anxiety, PTSD, and smoking cessation. You may be a good candidate if you have treatment-resistant depression, cannot tolerate medication side effects, prefer a non-drug approach, or want to augment your current medication regimen.
- Treatment-resistant depression (failed at least one adequate medication trial)
- Intolerance to multiple antidepressant medications
- Desire for a non-pharmacological option
- Depression during pregnancy (TMS avoids medication exposure)
- OCD that hasn’t responded to medication and therapy
| Feature | Standard TMS | Accelerated TMS (SNT) | Spravato |
|---|---|---|---|
| Treatment duration | 6–9 weeks | 5 days | Ongoing (twice weekly → weekly) |
| Sessions | 36 sessions | 50 sessions in 5 days | Twice weekly → weekly → biweekly |
| Onset of improvement | 3–4 weeks | Days | Hours to days |
| Response rate | 50–60% | ~79% | ~65–70% |
| Drug-free | Yes | Yes | No (nasal spray) |
| Cost | $6,000–$12,000 | $10,000–$15,000 | $5,000–$8,000/year |
Treatment Schedule and What to Expect
A standard TMS course involves 36 sessions over approximately 6–9 weeks. Traditional protocols deliver one session per day, five days per week, with each session lasting 19–37 minutes. During treatment, you’ll hear clicking sounds and feel a tapping sensation on your scalp. Most patients describe it as unusual but not painful. You remain fully awake and can drive yourself home afterward.
Newer accelerated protocols (like SNT) compress treatment into just 5 days of multiple daily sessions, producing faster results. Improvement typically begins around week 3–4 of standard treatment, with maximum benefits by the end of the full course.
Success Rates and Side Effects
Approximately 50–60% of TMS patients with treatment-resistant depression experience a significant response, and about one-third achieve full remission. These are remarkable numbers considering these patients had already failed multiple medications. Side effects are minimal: the most common is mild scalp discomfort at the treatment site, which usually improves over the first few sessions. There is a very small risk of seizure (less than 0.1%), and TMS cannot be used in patients with metallic implants in or near the head.
Cost and Insurance Coverage
A full course of TMS typically costs $6,000–$12,000. The good news is that most major insurance plans now cover TMS for treatment-resistant depression, including Medicare, Blue Cross Blue Shield, Aetna, Cigna, and United Healthcare. Prior authorization is usually required, and you’ll need documentation showing you’ve tried at least one antidepressant without adequate results.
At Next Step Psychiatry, we help patients navigate the insurance pre-authorization process. If you’re interested in TMS, schedule a psychiatric evaluation to discuss whether you’re a candidate.
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This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider. If you or someone you know is in crisis, call 911 or the 988 Suicide & Crisis Lifeline.