TMS Therapy Pros and Cons: What to Know Before Starting Treatment

What Is TMS Therapy?

TMS is a non-invasive brain stimulation treatment that uses focused magnetic pulses to activate nerve cells in regions of the brain associated with mood regulation. A specialized coil is placed near the scalp, and these pulses help "rewire" underactive neural circuits to restore healthier brain activity without surgery, anesthesia, or medication.

TMS is most commonly prescribed for treatment-resistant depression, a condition that occurs when one or more antidepressants have failed to produce adequate results

in treating major depressive disorder. But many patients turn to TMS for OCD, PTSD, addiction, and more.

The Pros of TMS Therapy

1. Clinically Proven Effectiveness

A study published in Psychiatry Research found that 54% of patients achieved a clinically meaningful response (at least 50% improvement in mood symptoms) after completing a course of rTMS therapy, based on analysis of hundreds of patients treated at UCLA Health from 2009 to 2022.

Research from a 2024 consensus review, which analyzed over 2,396 abstracts and manuscripts on TMS and depression, confirmed that TMS offers a well-established efficacy and safety profile for patients with depression, with emerging techniques like accelerated iTBS and MRI-guided stimulation showing even more promising results.

2. Non-Invasive With No Systemic Side Effects

One of TMS's greatest strengths is what it doesn't do. Unlike antidepressants, TMS does not enter your bloodstream, affect your liver, or require your body to metabolize a drug. There are no systemic side effects, meaning you won't experience the weight changes, sexual dysfunction, appetite disruption, or emotional blunting that many people find intolerable with medication.

Unlike electroconvulsive therapy (ECT), another option for treatment-resistant depression, TMS requires no anesthesia, sedation, or hospitalization. Patients sit comfortably during sessions and walk out the door afterward.

3. Minimal and Manageable Side Effects

The most commonly reported side effects of TMS are mild scalp discomfort or headaches at the treatment site, which typically diminish within the first few sessions as your brain adapts. Most patients complete a full TMS course without any significant side effects or complications.

And research confirms this. A comprehensive summary of adverse events from five multicenter deep TMS trials confirmed TMS's strong safety profile across large patient populations.

4. No Disruption to Your Daily Life

Individual TMS sessions typically last 20–40 minutes. You can drive yourself to and from appointments, and you can return to work, school, or your regular activities immediately after. There's no recovery time and no foggy medication side effects to manage.

5. Long-Lasting Results

One of the most reassuring things about TMS is how long the results tend to last. A study  that tracked patients for 6 months after treatment found that the vast majority remained well. Most of those who did experience a return of symptoms got back on track quickly with a few additional sessions. In other words, TMS isn't just a short-term fix. For most people, the relief is real, and it sticks.

The Cons of TMS Therapy

1. It Requires a Consistent Time Commitment

A standard TMS course involves roughly 36 sessions over 6–7 weeks, typically 5 days a week. While each session is brief, frequent appointments can be challenging for people with demanding jobs or complex schedules. That said, many clinics offer early morning or flexible scheduling to accommodate working patients.

Think of it as a short-term investment of your time for long-term mental health gains. Most patients who complete the course of treatment report that the schedule was manageable and worth the effort.

2. Some Patients Experience a Temporary Dip

Some patients notice a brief worsening of symptoms in the early sessions of TMS, sometimes called the "TMS dip." This “dip” is thought to reflect the brain adjusting to new stimulation patterns as neural pathways begin to reorganize. It's temporary.

As treatment progresses, the brain adapts, and healthy activity is restored. Your care team at Accentus Mental Health will monitor you closely throughout the process to provide support if this occurs.

3. Insurance Coverage Isn't Universal

TMS is covered by many major insurance providers for treatment-resistant depression, but coverage policies and eligibility criteria vary. Some plans require documentation of failed medication trials before approving TMS.

Our team works directly with patients to verify benefits, navigate insurance requirements, and explore financing options, so cost doesn't have to stand in the way of getting care.

4. Relapse Is Possible (But Manageable)

Like all treatments for depression, including antidepressants, TMS is not a guaranteed permanent cure. Some patients may experience a return of symptoms months or years after treatment. The good news is that most people who responded well to their initial TMS course also respond well to maintenance or "booster" sessions.

5. Very Small Risk of Seizure

The risk of a seizure from TMS is extremely rare, estimated at fewer than 1 in 60,000 treatment sessions. People with a personal or family history of seizures or epilepsy may not be appropriate candidates. Your Accentus clinician will conduct a thorough medical screening before recommending TMS to ensure it's safe for you.

Access TMS Therapy in Indianapolis

The Accentus Mental Health team offers TMS therapy in Indianapolis and is committed to helping you find the right path to lasting wellness. If you’re ready to find out if TMS is right for you, reach out to us today to schedule a consultation.

You don't have to keep trying treatments that aren't working. A better path is possible.