Quick answer: Antidepressants work chemically throughout the body, while TMS (transcranial magnetic stimulation) uses magnetic pulses aimed at one mood-regulating area of the brain. TMS has no systemic side effects like weight gain or sexual side effects, but it takes daily in-office sessions for several weeks. Many patients use both together, and the right choice depends on your history, symptoms, and insurance.
If you’ve been treated for depression, you’ve almost certainly been offered an antidepressant first. That’s appropriate: medication is effective for many people, widely covered, and easy to start. But it isn’t the only option, and for people who haven’t gotten enough relief from medication, or who can’t tolerate the side effects, TMS is often the next conversation.
Here’s how the two compare on the questions patients ask most.
How does each treatment work?
Antidepressants, such as SSRIs and SNRIs, change the levels and activity of brain chemicals like serotonin and norepinephrine. Because a pill travels through the bloodstream, it affects the whole body, which is where most side effects come from.
TMS works locally. A magnetic coil placed against the scalp delivers short pulses to the left dorsolateral prefrontal cortex, a region involved in mood regulation that tends to be underactive in depression. Over a course of sessions, that repeated stimulation is thought to strengthen activity and connectivity in the brain’s mood networks. Nothing is swallowed or injected, and nothing circulates through the rest of the body.
Which one is FDA-cleared or approved for depression?
Both. Antidepressants are FDA-approved medications. TMS devices are FDA-cleared for major depressive disorder in adults who haven’t responded adequately to antidepressant medication, and certain devices are also cleared for obsessive-compulsive disorder. That clearance language matters: TMS is generally considered after at least one medication trial, not instead of ever trying one.
How do the side effects compare?
This is where the two differ most. Common antidepressant side effects can include nausea, weight changes, sexual side effects, sleep changes, and emotional blunting, and some people cycle through several medications looking for one they tolerate.
The most common TMS side effects are scalp discomfort at the treatment site and mild headache, usually strongest in the first week and easing as treatment continues. Because TMS doesn’t circulate through the body, it doesn’t cause weight gain, sexual side effects, or drowsiness, and patients drive themselves home after each session. The most serious risk, a seizure, is rare, and your provider screens for risk factors before treatment begins.
What’s the time commitment?
Medication is low effort day to day: a pill at home. It typically takes four to eight weeks to know whether an antidepressant is working.
TMS asks more of your calendar up front. A standard course at our clinic is 36 sessions, about 19 minutes each, scheduled on weekdays over several weeks. Many patients book sessions before work or over a lunch break. Some begin noticing changes within the first two weeks, while others need most of the course.
Do you have to choose one?
No. Many patients continue their current antidepressant during TMS, and your provider will decide whether to adjust it. TMS isn’t a reason to stop a medication on your own; any change should be made with your prescriber.
Which is right for you?
Antidepressants are usually the right first step, and many people do well on them. TMS is worth discussing if:
- You’ve tried one or more antidepressants without enough improvement
- Side effects have made medication hard to stay on
- You want an option that doesn’t add another medication
- You’re managing other health conditions where additional medications are a concern
A psychiatric evaluation is where that decision gets made. Your provider will review which medications you’ve tried, at what doses, for how long, and what happened, then recommend whether TMS, a medication change, Spravato, therapy, or a combination fits best.
What about cost and insurance?
Antidepressants are covered by nearly every plan, often as low-cost generics. TMS is covered by most major insurers for major depressive disorder when coverage criteria are met, which usually includes documented trials of prior antidepressants. Arellano Advanced Psychiatry accepts Aetna, BlueCross BlueShield, Cigna, Medicare, Medicaid, Tricare, and VA/Triwest, and our team handles TMS pre-authorization before treatment starts.
Frequently asked questions
Is TMS more effective than antidepressants? They’re used at different points in care, so a straight comparison is hard. TMS is studied mostly in people who didn’t respond well to medication, which is a harder-to-treat group. Your provider can explain what the research shows for someone with your history.
Can I stop my antidepressant if I start TMS? Not on your own. Some patients stay on their medication during and after TMS; others adjust it later. Make any change with your prescriber.
Does TMS have the same side effects as antidepressants? No. TMS doesn’t circulate through the body, so it doesn’t cause weight gain, sexual side effects, or drowsiness. The most common effects are scalp discomfort and mild headache.
How long do TMS results last? Many patients maintain improvement for months or longer after a course, and some return for maintenance sessions. Durability varies by person.
Talk to a TMS provider in El Paso
TMS El Paso offers care at three El Paso locations: Montana Avenue in Central El Paso, Beech Street near Cielo Vista, and Joe Battle Boulevard on the far east side. Our providers can review your treatment history and help you decide on a next step. Request an appointment or see if you qualify for TMS.
This article is for informational purposes only and is not a substitute for a professional psychiatric evaluation. If you or someone you know is having thoughts of suicide, call or text 988 to reach the Suicide & Crisis Lifeline, or go to your nearest emergency room.