Antidepressants are part of the treatment, not the treatment: they make change easier, and medication and therapy are probably equal in efficacy. Pick by side effects first (especially avoiding weight gain), treat to remission and then keep going six months to a year, and formulate before you prescribe. Where bipolarity is a real possibility, the main question is whether an antidepressant will make the patient worse, and experienced clinicians lean on mood stabilizers instead.
Where they fit
Medication and therapy are probably equal in efficacy. Medication works a little faster: standard antidepressants take about four to six weeks to work, with some effect visible at about two weeks.
“I think they're probably equal in efficacy. Now, medications work a little bit faster. So we know that our standard antidepressants take about four to six weeks to work, but it takes about two weeks to kind of see an effect”
17:27What Patients Should Know When Diagnosed With DepressionSep 2026 Treating the biological side can have a knock-on effect on the psychological and the social.
“So by treating the biological there, you can have a knock-on effect on the psychological or the social”
11:08What Patients Should Know When Diagnosed With DepressionSep 2026 Psychotherapy is the treatment for unipolar depression, and patients ought to get trials of three different psychotherapies before their first antidepressant trial.
“Psychotherapy is the treatment for unipolar depression, and people ought to get trials of three different Psychotherapies before they get a first trial of an antidepressant”
47:56Dr. Jim Phelps’ Bipolar Treatment Tier List: Lessons from 30+ Years in PsychiatryJul 2026Guest episode Do not just see someone suicidal or depressed and give an SSRI. Many kinds of suicidality do not primarily respond to an antidepressant. Have a formulation, diagnosis and treatment plan before you prescribe.
“none of these respond to an SSRI. None of these respond to an antidepressant, primarily. So do not just think someone is suicidal or depressed, give an SSRI. You need to have a formulation, diagnosis, and treatment plan before you prescribe things”
37:44Suicide Risk Assessment: Acute vs Chronic Risk, Formulation, and Suicidal Ideation TypesJun 2026 In research on personality traits, neuroticism was the only trait that responded better to antidepressants than to CBT.
“Neuroticism was the only trait that responded better to antidepressants than to CBT. It is a personality style that you would expect the antidepressants to”
37:11Understanding Anxiety, GAD, and Treatments of AnxietyJun 2025
Choosing one
Rule one: never pick a medication that causes weight gain or appetite increase if you can help it, and minimize side effects. Rule two: pick the most efficacious.
“I'll never pick medications that will cause weight gain or appetite increase if I can help it. and I try to minimize side effects. That's kind of rule one. And then rule two is most efficacious”
0:38Antidepressant Tier List: Psychiatrists Rank Depression Medications for MDDMay 2026 Purity is overrated. We like a dirty drug that can do several things at once.
“Purity is very overrated, both in real life and in medications. And I would I would say that I love a dirty drug. I love medications that can do multiple things at once”
11:19Antidepressant Tier List: Psychiatrists Rank Depression Medications for MDDMay 2026 Tailor your tier list to your own patients. Populations differ, your diagnostic pool differs, and so treatment response will too.
“the tier list that you use for medication should really be tailored to your patient population. Patient populations are different, and your diagnostic pool is going to be different, and so your treatment response is going to be different, too”
1:08:49Antidepressant Tier List: Psychiatrists Rank Depression Medications for MDDMay 2026
How long to treat
Treat to remission, then wait six months at minimum and preferably a year before making changes. That is prudence, not data: even after remission, an early stop or decrease can bring the depression back. Let the patient guide it, and ask what they have changed about themselves and their life since starting.
“treat to remission and then at least a year before you make some changes. That's not really data supported. It's just kind of prudence because what we do know is usually even if you treat to remission, an early stop or decrease can seems to can it can result in a return of depression”
1:02:30Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025 Also said in 1 more episode
“six months would be my minimum. I prefer a year, but again, totally not database, right? So go off of what the patients want and ask them, what have you changed about yourself, about your life since starting treatment”
1:04:29Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025 Probably half of depressions are single episodes, and half of people with depression will have a recurrence if they come off medication.
“probably half of depressions are one episode depressions and half of people who have depression are going to have chronic depression that they're going to have recurrence if you come off the medications. Um, Um, typically what I do is I say, listen, as you said, we, we get you in remission”
1:03:37Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025 Pulling an antidepressant off quickly is itself an acute stressor, so be mindful of that.
“pulling it off quickly is also an acute stressor. So you need to be mindful of that”
52:51Dr. Jim Phelps’ Bipolar Treatment Tier List: Lessons from 30+ Years in PsychiatryJul 2026
Side effects and safety
For weight gain, prevention is the best strategy: avoid weight-inducing medications. Some people still gain weight on an antidepressant that does not itself cause it.
“the best advice is to avoid weight gain inducing medications. Avoid weight gain inducing medications. Prevention is the best strategy there. Now, don't get me wrong. Some people also begin to gain weight, even on the medication that treats depression that does not itself cause weight gain”
56:23Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025 When people get worse on antidepressants, it is mostly, in our view, because they have a more bipolar-type condition and develop antidepressant-related agitation and sleep problems. That is probably why we see more suicidal ideation in people under 25 on antidepressants.
“Why do some people get worse than antidepressants? In my opinion, it's mostly because they have some kind of a more bipolar disorder type condition and experience antidepressant-related agitation and sleep problems. That's probably, in my opinion, why we see the increased risk for suicidal ideation in people under the age of 25 on antidepressants”
1:06:35Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025 Oddly, REM deprivation (waking people before they reach REM) can treat depression.
“rem deprivation can treat depression which is very bizarre to me yeah if you just wake people up before they hit rem which if you do that to an average person they'll hate you and be miserable um it can help treat depression”
41:40Insomnia and Sleep Medications in PsychiatryDec 2024
Antidepressants and bipolarity
The biggest treatment question bipolarity raises is how likely an antidepressant is to make the patient worse. The more you worry about that, the more a mood-stabilizer approach makes sense; simplified social rhythm therapy is the number one mood stabilizer, then lamotrigine and low-dose lithium.
“The biggest one for sure is how likely is it that we're going to make you worse with an antidepressant? And conversely, to the extent that we worry about that, then we think that maybe a mood stabilizer based approach is a better idea”
23:09How to Diagnose Bipolar Disorder with Dr. Phelps: Hypomania, Mixed States & the Clues DSM MissesSep 2026Guest episode Also said in 1 more episode
“simplified social rhythm therapy is my number one mood stabilizer and then lamotrigine and low-dose lithium”
42:40How to Diagnose Bipolar Disorder with Dr. Phelps: Hypomania, Mixed States & the Clues DSM MissesSep 2026Guest episode The big problem is not just mania but induced mood instability and mixed states. Almost all antidepressants are pro-cycling.
“The big problem is inducing mood instability and mixed states. You make cycling more likely to happen because antidepressants are Antidepressant, all antidepressants with almost no exceptions are pro cycling”
49:54Dr. Jim Phelps’ Bipolar Treatment Tier List: Lessons from 30+ Years in PsychiatryJul 2026Guest episode In bipolar disorder, avoid antidepressants like the plague unless you cannot get away without them. If someone is already on one and rock-solid stable, that is fine.
“I'm going to avoid them like the plague unless I can't get away without using them. So the first thing I'm going to say is that if someone is on a antidepressant and they're rock solid stable, then fine”
18:20The Best Bipolar Medication Review From The Best Bipolar ExpertJan 2025 It is not never; it is after you have tried multiple other things, and for a specific subset of patients. When it finally comes to that, bupropion.
“it's not a never use them. It's a use them after you've tried multiple other things. And there's a specific subset of patients for whom I think there is a potential role. And when I finally come around to that, it would be bupropion”
48:30Dr. Jim Phelps’ Bipolar Treatment Tier List: Lessons from 30+ Years in PsychiatryJul 2026Guest episode Bipolar specialists stress mood stabilizers, and as you treat more patients you use antidepressants less and make mood stabilizers the mainstay.
“whenever you're talking to a bipolar specialist, they emphasize the importance of mood stabilizers. And you'll see as you treat more and more patients, you start to use antidepressants less and you focus the mainstay of treatment on mood stabilizers, mood stabilizers, mood stabilizers”
6:38Mood Stabilizers for Bipolar Disorder: Lithium, Lamotrigine, Depakote & MoreJul 2026 If a patient is already on many medications, take something away first, antidepressants in particular, so lamotrigine gets a fairer trial.
“get rid of something first so that Lamotrigine gets a fairer trial. In particular, antidepressants. Patients who are already on an antidepressant makes it less likely that lamotrigine will demonstrate its remarkable capacities”
47:03Dr. Jim Phelps’ Bipolar Treatment Tier List: Lessons from 30+ Years in PsychiatryJul 2026Guest episode
Reading the response
Response to treatment, as a bipolar clue, really means an adverse reaction to an antidepressant: something weird happened, an antidepressant misadventure.
“So what we're really looking for in this response to treatment finger is an adverse reaction to an antidepressant. Something weird happened. What a primary care colleague called antidepressant misadventures. Oh, you know, something really strange happened. That's all I'm listening for”
16:24How to Diagnose Bipolar Disorder with Dr. Phelps: Hypomania, Mixed States & the Clues DSM MissesSep 2026Guest episode Fluoxetine or escitalopram alone can cause agitation, sleep disruption or even emergent hypomania in some people. Take the medication away and watch: they may never have another episode without it.
“Simply taking Prozac, lexaprozol off for some people can result in agitation, sleep disruption, or even emergent hypomania. And while those people can have those substance and medication-induced episodes, you take away those substances and you watch them, they may not have another one without those substances”
12:03The Best Bipolar Medication Review From The Best Bipolar ExpertJan 2025 When assessing for bipolar disorder, do not forget prescribed medications patients do not think of as drugs. Stimulants are the biggest, but consider antidepressant-induced mania too.
“You can't forget the prescription medications that are being taken by patients that don't consider drugs, even if they are prescribed or are not prescribed to them. Obviously, the biggest ones are stimulants, but we also have to consider the possibility of antidepressant induced mania”
16:34How to Diagnose Bipolar Disorder: The Interview Framework That Beats Screening QuestionsFeb 2026 How far to carry on through early activation depends on your suspicion of bipolarity before you started. If it was very low, you and the patient can tolerate some of it and see where it goes.
“The answer is it depends on what your index of suspicion of bipolarity was before you started the whole thing. If your suspicion was very, very low, then you can, you and your client patient can kind of tolerate some of this and explore and carry it on a little farther and see what direction this is going”
19:15How to Diagnose Bipolar Disorder with Dr. Phelps: Hypomania, Mixed States & the Clues DSM MissesSep 2026Guest episode Show the patient your thinking and ask what they want to do, within certain parameters.
“I show my thinking and I say, what do you want to do? Obviously within certain parameters”
20:33How to Diagnose Bipolar Disorder with Dr. Phelps: Hypomania, Mixed States & the Clues DSM MissesSep 2026
Talking to patients
The medication is not the treatment; it is part of it. It is not a happy pill. What it probably does is make it easier for you to change.
“the medication is not the treatment. It's part of the treatment. And how do these work? You're not just going to start feeling happier. This is not a happy pill. What this medication probably does is that it makes it easier for you to change”
45:28Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025 Many patients expect you to throw a medication at them. Unless you take active steps to show the treatment is more than the pill, that is what they will assume.
“a lot of people are already trained to expect that you're there to throw a medication at them. That's why they're seeing you. Right. And if therefore, if you don't take active steps to show that the treatment process is more than the medication, then that's the natural assumption”
1:08:49Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025 Prescribe from a gatekeeper stance (I give you the meds, the meds treat your thing) and you will get much worse outcomes.
“If you're prescribing these things from a stance of, I am a gatekeeper, I give you the meds and this treats your thing, you're going to have so much worse outcomes”
46:47Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025
Pitfalls and myths
When clinicians do not think through the diagnostic hierarchy, patients end up running through antidepressant after antidepressant, or on higher and higher doses of stimulants.
“how often do we see patients on higher and higher doses of stimulants? Patients who, you know, they're running through the gambit of different antidepressants because the persons were not thinking through the hierarchy appropriately”
22:02Diagnostic Hierarchy Explained: Why Patients Get 5 DiagnosesNov 2026
It also comes up on
- SertralineWe use four first-line antidepressants, and when the choice is an SSRI it is sertraline or escitalopram. The first two antidepressants anyone should be using are always one of those two.
- TrazodoneLow-dose trazodone is not a small antidepressant. At 50 mg it is not reuptaking serotonin, which is its antidepressant mechanism, so you have to reach higher doses for that.
- AntipsychoticsWith social rhythm therapy available, the choice is no longer antidepressants versus antipsychotics but antipsychotics versus social rhythm therapy, which is a no-brainer on risk and benefit.
- AntipsychoticsAs antidepressant augmenters they work, and not just because people were misdiagnosed with bipolar disorder: they have many unique receptor effects an SSRI lacks. They are popular in the US but high risk.
- Bipolar depressionLamotrigine's anti-manic effect is not great, but its antidepressant effect in bipolar depression is relatively robust. The studies say it does not treat acute depression; our clinical experience contradicts that.
- Bipolar depressionThe community idea that bupropion is the safer antidepressant in bipolar disorder is a myth; we do not think there are data to show it.
- Bipolar disorderA formal light box carries the same risks as antidepressants: hypomania or mania, mixity, and anxiety, irritability, agitation and attention problems.
- Bipolar disorderThe mood stabilizers with antidepressant efficacy are the 'three Ls and a Q': in the discussion, lithium, lamotrigine, trazodone and quetiapine.
From these episodes
- Diagnostic Hierarchy Explained: Why Patients Get 5 DiagnosesNov 2026 · 1 point
- What Patients Should Know When Diagnosed With DepressionSep 2026 · 2 points
- How to Diagnose Bipolar Disorder with Dr. Phelps: Hypomania, Mixed States & the Clues DSM MissesSep 2026 · 5 points
- Mood Stabilizers for Bipolar Disorder: Lithium, Lamotrigine, Depakote & MoreJul 2026 · 1 point
- Dr. Jim Phelps’ Bipolar Treatment Tier List: Lessons from 30+ Years in PsychiatryJul 2026 · 5 points
- Suicide Risk Assessment: Acute vs Chronic Risk, Formulation, and Suicidal Ideation TypesJun 2026 · 1 point
- Antidepressant Tier List: Psychiatrists Rank Depression Medications for MDDMay 2026 · 3 points
- How to Diagnose Bipolar Disorder: The Interview Framework That Beats Screening QuestionsFeb 2026 · 1 point
- Understanding Anxiety, GAD, and Treatments of AnxietyJun 2025 · 1 point
- The Best Bipolar Medication Review From The Best Bipolar ExpertJan 2025 · 2 points
- Treating Depression: Practical Tips & Pearls for Anti-Depressant MedicationsJan 2025 · 8 points
- Insomnia and Sleep Medications in PsychiatryDec 2024 · 1 point
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.