Before calling depression treatment resistant, make sure the trials were adequate and the diagnosis is right: by the third failed medication, reconsider, because treatment-resistant depression is where personality disorders go to hide and bipolarity is often missed. For true resistance, use the treatments with the best evidence (ECT, TMS, aripiprazole and other antipsychotics, lithium, thyroid, the ketamines) and raise neuromodulation early, rather than stacking antidepressants.
Is it really treatment resistant?
If you are treating major depression and are on your third medication in a row with no remission, reconsider your diagnosis. Make sure you have the right diagnosis: treatment-resistant depression is where personality disorders go to hide.
“If you're treating major depression and you're on your third medication in a row with no remission, reconsider your diagnosis”
34:56Antidepressant Tier List: Psychiatrists Rank Depression Medications for MDDMay 2026 Also said in 1 more episode
“Make sure you have the right diagnosis, people. Treatment-resistant depression is where personality disorders go to hide”
1:00:44Antidepressant Tier List: Psychiatrists Rank Depression Medications for MDDMay 2026 Keep a high threshold for the label. When someone is not doing well on antidepressants, it is better to reformulate the patient and make sure the work on affect or personality is being done.
“I have a, you know, really high threshold. If someone is not doing well on antidepressants to say that they have treatment resistant depression. I would much rather reformulate the patient. I would much rather make sure we're doing the work on affect or personality”
40:17Affective Neuroscience: Understanding Patients Beyond DSM DiagnosesAug 2026Guest episode Patients with ten or more medication trials are often going through that list of things that will not work because no one made a psychological formulation.
“I've seen patients with 10 or more medication trials, and the reason why the person's kind of going through this laundry of things that are not going to work is a lack of a psychological formulation”
19:15Is Psychoanalysis Still Relevant in Modern Psychiatry?Oct 2025 Bipolar disorder is overdiagnosed in patients with heavy personality pathology, but severely underdiagnosed in treatment-resistant depression.
“It is overdiagnosed and underdiagnosed. What we see is patients with a lot of personality pathology, with borderline personality disorder, oftentimes it's overdiagnosed in that context. In those patients in treatment resistant depression, I see it severely underdiagnosed in”
7:22How to Diagnose Bipolar Disorder: The Interview Framework That Beats Screening QuestionsFeb 2026 Persisting with an SSRI in someone with bipolarity is where it becomes harmful and dangerous, and there are other options.
“when you persist with SSRI in someone with bipolarity, that's where it becomes more harmful and dangerous. And there are other treatment options”
54:19Lindsay Clancy Trial: A Forensic Psychiatrist Explains Psychosis, Malingering, & the Insanity DefenseSep 2026 Ask: if this medication worked and everything changed, what would be different about your life, what would you do differently? If they cannot answer that well, futile prescribing has little use.
“you've asked them, what would you do if you felt better? What if this medication worked and everything changed and you felt differently? What would be different about your life? What would you do differently? And if someone can't answer that very well, I don't see the utility in futile prescribing”
41:26Affective Neuroscience: Understanding Patients Beyond DSM DiagnosesAug 2026Guest episode Ask why each medication was switched and what was going on at the time. You can get almost a full narrative life history that way.
“I almost get a full narrative life history just by like... filling in all those details as to why they switched medications and what was going on during that medication switch”
39:17How to Do a Psychiatric Intake | The Art and Science of the First HourSep 2025
Adequate trials
As a rule of thumb, an adequate trial is at least three quarters of the FDA maximum dose. Side effects are the reason to switch before you get there.
“as a rule of thumb, say that it's at minimum three quarters of the maximum dose under the FDA approval. If you're not really there, it's not quite an adequate trial. Now, there's reasons to start switching before you get to an adequate dose, obviously, and that's side effects, right”
12:54Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025 Also said in 1 more episode
“there's reasons to start switching before you get to an adequate dose, obviously, and that's side effects, right? So if someone doesn't tolerate a medication, then it's time to switch”
13:07Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025 Many patients are scared to push the dose. Find out why and talk about it: there can be good reasons, and a little education may make them more comfortable.
“A lot of patients are scared to push the dose for a variety of different reasons. You want to find out why and talk about it. You know, there can be good reasons to be afraid. And with a little education, they might feel more comfortable”
13:25Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025 At an adequate dose with no response, switch or augment. The research does not show one is better.
“But then if something's not working and it's an adequate dose, you either switch or you augment. Now, I like to augment, but really, the research does not show superiority of one approach or another. You can switch or you can augment”
13:38Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025 One instinct is to switch first to keep the medication count down, and augment when there is a partial effect but side effects make you not want to push the dose higher.
“my instinct is to switch first just to reduce the number of medications. That said, there are cases where you see a little bit of an effect, but... you have side effects or something that makes you not want to push the dose higher, then I would augment. But I switch is my first instinct”
15:09Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025
What has the evidence
The best evidence goes to ECT, TMS, antipsychotics (aripiprazole has the best evidence and the biggest effect size), lithium, thyroid supplement, and ketamine and esketamine. Those are the top-line interventions.
“The best evidence goes to ECT, TMS, TMS. antipsychotics, particularly aripiprazole has the best evidence and the biggest effect size, lithium, thyroid supplement, and the ketamines, esketamine and ketamine. So those would be our top line interventions”
6:46The Deficit Model in Psychiatry & Difficult to Treat Depression with Dr. Chris Aiken | Episode 18Mar 2025Guest episode At the bottom of the evidence ladder sit bupropion, mirtazapine and buspirone augmentation. Taking two antidepressants rarely works better than one, yet that is what we most often do.
“at the bottom of that evidence ladder sits bupropion and mirtazapine and basically buspirone, another antidepressant augmenting. So taking two antidepressants rarely ever works better than taking one, which is what we most often do”
36:45The Deficit Model in Psychiatry & Difficult to Treat Depression with Dr. Chris Aiken | Episode 18Mar 2025Guest episode Consider TCAs and MAOIs for true treatment-resistant depression, not depression driven by trauma and personality, if you know what you are doing.
“Consider them if you have true treatment-resistant depression, not just we're calling something that's trauma and personality depression. Please consider your TCAs and your MAOIs if you know what you're doing”
1:08:17Antidepressant Tier List: Psychiatrists Rank Depression Medications for MDDMay 2026 One theory of thyroid augmentation is that depression is a form of thyroid resistance, so more thyroid gets into brain cells. That is why T3 (liothyronine, Cytomel) is preferred: it is more brain active.
“depression is a form of thyroid resistance. And just like we give people with because they're resistant to it, we pump up the thyroid in these patients with depression. They then get more thyroid entering into their cells, particularly in the brain. That's why we tend to prefer T3 triiodothyronine cytomel, because it's more brain active”
25:15The Deficit Model in Psychiatry & Difficult to Treat Depression with Dr. Chris Aiken | Episode 18Mar 2025Guest episode Ketamine has a big effect size but not lasting benefits, so it is not for everyone. Esketamine is a short-term lift out of depression that has to be followed by hard lifestyle changes and psychotherapy.
“It is a short-term treatment that helps you lift out the depression and then you have to do hardcore lifestyle changes and psychotherapy on top of that”
1:03:18Antidepressant Tier List: Psychiatrists Rank Depression Medications for MDDMay 2026 Also said in 1 more episode
“I'm not like suggesting everyone take ketamine even though it has a big effect size because it doesn't have lasting benefits”
36:37The Deficit Model in Psychiatry & Difficult to Treat Depression with Dr. Chris Aiken | Episode 18Mar 2025Guest episode Deficit-model add-ons include folate, omega-3 fatty acids, probiotics, light therapy, vitamin D and possibly hormonal therapies, though hormones are not something psychiatrists should be doing.
“They are the folate treatments, folate vitamins, omega-3 fatty acids, probiotics, light therapy, vitamin D, and possibly some hormonal therapies, which I don't recommend psychiatrists do”
8:41The Deficit Model in Psychiatry & Difficult to Treat Depression with Dr. Chris Aiken | Episode 18Mar 2025Guest episode No single new medication will pull these patients out of all their problems, but a broader look at relationships, lifestyle and deficits may improve mood a bit and help them function better.
“we're not going to find a single treatment like a new medication that's going to pull them out of all these problems. But if we take a broader look at their relationships, their lifestyle, at these kinds of deficits, we might find ways to improve their mood a bit and help them function better in the world”
41:22The Deficit Model in Psychiatry & Difficult to Treat Depression with Dr. Chris Aiken | Episode 18Mar 2025Guest episode
ECT and neuromodulation
The chance that each medication trial brings remission drops sharply with each trial: around 30 percent for the first on average, around 20 percent for the second.
“the likelihood of each medication trial treating someone's symptoms to remission goes down exponentially with each trial. And depending on where you look, those numbers could be anywhere with first medication trial having a chance on average around 30%, second trial around 20”
31:36ECT Treatment: When to Refer, Who It Helps, and What Actually Happens with Dr. MaryEllen EllerJun 2026Guest episode Start the conversation about ECT the moment you start medication trial number two.
“Usually this conversation, we should start having it the moment we start medication trial number two, right”
36:54ECT Treatment: When to Refer, Who It Helps, and What Actually Happens with Dr. MaryEllen EllerJun 2026Guest episode By the time people are referred for ECT they average more than 12 medication trials, and they arrive hopeless, feeling this is the last stop.
“Oftentimes when somebody is getting referred to me for ECT, the average number of medication trials is greater than 12. By the time they show up, they're feeling hopeless. They're feeling like this is the last stop on their journey”
38:05ECT Treatment: When to Refer, Who It Helps, and What Actually Happens with Dr. MaryEllen EllerJun 2026Guest episode Neuromodulation can bypass the receptors and stimulate the circuit directly, using electromagnets and induced currents.
“Maybe I can bypass the receptor set and I can just directly stimulate that circuit using cool principles with like electromagnets and inducing currents”
33:35ECT Treatment: When to Refer, Who It Helps, and What Actually Happens with Dr. MaryEllen EllerJun 2026Guest episode
It also comes up on
- Borderline personality disorderThese conversations go well nearly every time, whether you say BPD or traits. Patients feel understood and less alone, and it is a relief to have an identifiable condition instead of a treatment-resistant depression no one can figure out.
- Psychiatric diagnosisPersonality conversations, whether the diagnosis or just the traits, have gone well every single time; most patients just want help. A borderline diagnosis makes patients feel understood and less alone, and it is a relief to have an identifiable thing rather than a treatment-resistant depression no one can figure out.
- PsychoeducationGiving the diagnosis usually goes well. It makes patients feel understood and less alone, and it is a relief to have an identifiable condition instead of a treatment-resistant depression no one can figure out.
From these episodes
- Lindsay Clancy Trial: A Forensic Psychiatrist Explains Psychosis, Malingering, & the Insanity DefenseSep 2026 · 1 point
- Affective Neuroscience: Understanding Patients Beyond DSM DiagnosesAug 2026 · 2 points
- ECT Treatment: When to Refer, Who It Helps, and What Actually Happens with Dr. MaryEllen EllerJun 2026 · 4 points
- Antidepressant Tier List: Psychiatrists Rank Depression Medications for MDDMay 2026 · 4 points
- How to Diagnose Bipolar Disorder: The Interview Framework That Beats Screening QuestionsFeb 2026 · 1 point
- Is Psychoanalysis Still Relevant in Modern Psychiatry?Oct 2025 · 1 point
- How to Do a Psychiatric Intake | The Art and Science of the First HourSep 2025 · 1 point
- The Deficit Model in Psychiatry & Difficult to Treat Depression with Dr. Chris Aiken | Episode 18Mar 2025 · 6 points
- Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025 · 5 points
Every point above is something said on the Psychofarm podcast, with the words as spoken and a link to the moment in the episode. It is education, not medical advice, and an episode reflects what we thought when we recorded it.