The first time a doctor says "treatment-resistant," it can sound like a verdict. You hear "resistant" and picture a wall. For the person you care for, it may sound worse: as if they have failed at getting better.
It is neither of those things. This explainer is for St. Louis caregivers who have watched a loved one's depression hang on through medication after medication. It walks through what the term usually covers, what it does not imply, and what tends to come next, with help from our survey of 443 Midwest adults. Those survey figures are top-line and final.
You are far from alone in watching this
Respondents told us whether the usual medicines had failed to ease depression, anxiety, or PTSD for them or for someone close. Seventy-two percent said it had. For caregivers, the relevant slice is the more than one in three who said it was someone close to them or both themselves and someone close.
That question was about lived experience, not formal diagnosis. But it shows how familiar this situation is. Many families in St. Louis are quietly going through the same thing you are.
What "treatment-resistant" usually means
Clinicians generally use the term for major depression that stays significant after more than one antidepressant has been tried, each at a proper dose and for a proper length of time. The exact definition can vary, and your loved one's doctor will apply their own judgment.
Two parts of that description matter:
- "Proper dose." A medication that was stopped early, or kept at a low dose, may not count as a full trial. That is why doctors ask detailed questions about history.
- "Proper length of time." Antidepressants often can need a number of weeks before their full effect shows. A medication tried for ten days and stopped may not have had a fair chance.
So if a doctor starts asking exactly which medications, at what dose, and for how long, they are not doubting your loved one. They are figuring out which category the depression falls into, because that shapes which options make sense.
What the label is not
- Not a synonym for untreatable. The term describes a history, not a future. Other approaches exist precisely for this situation.
- It does not mean your loved one did something wrong. Depression responds differently in different people. Not responding to a medication is not a personal failure.
- It does not mean the first doctor made a mistake. Starting with standard antidepressants is usual practice. Moving on when they do not work is part of the process.
What options usually come up next
Once depression is considered treatment-resistant, a clinician may discuss several paths. Which ones fit depends on the person. Common possibilities include:
- Switching to a different medication or adding a second one.
- Adding or changing psychotherapy.
- Transcranial magnetic stimulation, or TMS, which works through magnetic pulses rather than medication. Having a route without medication mattered to 64 percent of our respondents, though most had never heard of TMS.
- Esketamine, the nasal spray that holds FDA approval in treatment-resistant depression, used only at a certified clinic, where the patient is watched for a period after each dose and must have someone else drive them home.
- Electroconvulsive therapy, which remains an option for some people with severe depression.
Many people have never heard of these. Spravato, the brand name for esketamine, was a mystery to 73 percent of our respondents. An overview of Spravato for families can help if the name comes up. You do not need to know every option. You need to know that asking about them is reasonable.
One distinction worth holding onto: the approved esketamine spray is different from ketamine given by IV at infusion clinics, which is an off-label use, and different again from at-home ketamine sold through telehealth. They are not interchangeable, and it is fine to ask a clinician which one they are talking about.
Where St. Louis families usually start
Most people start with the doctor they already know. In our survey, 56 percent would raise a newer depression treatment with their primary care doctor before anyone, and 23 percent would begin with psychiatry. A primary doctor can refer to psychiatry or a specialty clinic.
The St. Louis region has several hospital systems with psychiatry services, community mental health centers on both the Missouri and Illinois sides, and federally qualified health centers that offer primary care on a sliding scale. Waits for psychiatry can be long, so it can help to ask the primary doctor to send a referral with the full medication history attached.
How you can help as a caregiver
- Help reconstruct the history. Pharmacy records or old pill bottles can fill in names and doses.
- Reframe the word. If your loved one hears "resistant" as a failure, you can say, "It just means we get to try something different."
- Get the insurance answers early. Eighty-five percent of respondents rated coverage a top-two concern in choosing a provider. Ask the plan what it pays for and whether prior authorization applies.
- Offer to drive. Several of these options involve regular visits, and esketamine requires a ride home each time.
If safety becomes a concern
Long-lasting depression can bring thoughts of suicide. If your loved one talks about it, take it seriously that day. The Suicide and Crisis Lifeline works around the clock, including for calls about another person. Dial or text 988 to reach it; veterans can press 1. For immediate danger, call 911.
What this explainer is
This is general information supported by survey findings, not medical advice. Only your loved one's clinician, with the full history, can say whether their depression is treatment-resistant or which option might fit.
Methodology
We draw on our Pollfish consumer panel survey, which closed June 23, 2026, and heard from 443 adults 18 to 64 in Iowa, Missouri, Kansas, Illinois, Minnesota, Oklahoma, Ohio, Indiana, Nebraska, and Wisconsin. Its experience question covered personal or close experience rather than clinical diagnosis. We cite only top-line numbers from the final validated data, with no St. Louis breakout. The publisher paid for this research and commissioned it.