Mood Disorders Treatment

“Mood disorder” is a category, not a diagnosis. Under that umbrella sit a half dozen actually-different illnesses: regular old depression, bipolar I, bipolar II, cyclothymia, premenstrual dysphoric disorder, disruptive mood dysregulation in kids, and a handful of less common variants. From a distance they look similar enough that people use the names interchangeably, which the field then does too in casual conversation, which then ends up on intake notes, which then leads to the wrong medication being written six months later because somebody never actually pinned down which mood disorder was in the room.

The shared thread is the system that’s supposed to keep your emotional baseline somewhere reasonable has stopped holding the line. For some people that means a flat gray weight that won’t lift. For others it’s the baseline sliding into highs and lows that don’t track with anything happening in actual life. The categories exist because the patterns repeat… once you’ve seen enough of these patients, you start recognizing which mood story belongs to which illness, and the recognition is what changes the prescription.

Patients almost never walk in with the right label. They walk in with “I’ve been depressed for years” or, more often now that the algorithm is involved, “I’m pretty sure I have bipolar.” The job of the first appointment is figuring out which of these illnesses is actually sitting in the room.

The way the patient feels in the room tells me almost nothing. What I want is the longitudinal arc.

The spectrum, in plain English instead of DSM-speak

Major depression is the one most people picture. Two weeks or more where the mood is flat or low, the stuff you used to like doesn’t do it anymore, sleep is wrecked one direction or the other, appetite has done something weird, your thinking is slow, and sometimes the suicidal stuff starts showing up. No history of mania or hypomania (the high-energy counterpart, more on that in a second). About 8 percent of US adults hit criteria in any given year. Responds to SSRIs, SNRIs, therapy, and in the stubborner cases bupropion, mirtazapine, ketamine, ECT (electroconvulsive therapy, the modern version of which is nothing like the movie, anesthesia plus a brief controlled seizure, the most effective treatment in psychiatry for severe depression and the one with the worst PR).

Bipolar I is depression plus full mania, and mania is the loud kind. A week or more (or any duration if it landed you in a hospital) where the mood is jacked up or irritable, the sleep dropped to two or three hours and you don’t miss it, the thoughts are racing, the speech is pressured, the impulsive stuff (spending, sex, new businesses, road trips) is genuinely out of character, sometimes psychosis on top. Real mania is unmistakable when you’ve seen it. People max out credit cards, drive across state lines, start three businesses in a week, decide they need to quit their job to “focus on the bigger thing.” About 1 percent lifetime prevalence.

Bipolar II is depression plus hypomania, which is the milder, shorter cousin of mania. Four days or more of elevated mood and energy, racing thoughts, less sleep, but not enough to wreck your life or land you in a psych unit, and that’s the catch right there. Patients usually love their hypomanias and don’t report them, they come in for the depressions, and that’s how the diagnosis gets missed for years and they end up on five rounds of antidepressants that worked for three weeks each before pooping out or making them “wired and weird.”

Cyclothymia is the low-amplitude, long-duration version. Two years or more of mood sliding between sub-threshold hypomanic and sub-threshold depressive stuff, never quite hitting full episodes in either direction, but never really stable either. Chronic, exhausting, and because nothing ever looks dramatic enough to count as an “episode,” often untreated for a decade and chalked up to personality.

PMDD is its own beast. Severe mood symptoms (irritability, depression, anxiety) that show up in the luteal phase of the menstrual cycle and resolve within a few days of bleeding starting. Affects roughly 5 percent of people who menstruate. Distinct disorder with its own treatment algorithm, usually SSRIs (sometimes dosed only in the luteal-phase half of the cycle) and hormonal options. Disruptive mood dysregulation disorder is the pediatric category, designed specifically to slow the overdiagnosis of pediatric bipolar that went off the rails in the 2000s. None of this batch is going to be the main event in most of the men reading this, but they exist, and they get missed exactly the way the others do.

Why the diagnosis actually matters

Here’s the part that keeps prescribers careful, or should. Give an antidepressant to somebody with undiagnosed bipolar and you can flip them into mania, mixed states, or rapid cycling. SSRI monotherapy in bipolar is one of the more reliable ways to knock a patient sideways who was previously holding it together, and it’s the reason a careful prescriber spends twenty minutes on family history and mood history at the first appointment before writing anything. The fifteen-minute initial med check is a bad setting for sorting this out, and most of the time it doesn’t, which is part of how so many bipolar II patients end up with a five-year stack of failed antidepressant trials in the chart.

The flip side is real too. Most people with classic regular depression don’t need lithium, and starting somebody on lithium because the prescriber got nervous about “maybe bipolar” is its own kind of harm. Lithium has a narrow therapeutic window, requires regular bloodwork (lithium level, kidney function, thyroid), and can mess with the kidneys and thyroid over time. Worth it if you need it. Not worth it if you don’t.

If your “depression” lifted for three days last summer when you slept four hours a night and felt fantastic, tell the prescriber. That’s the conversation that changes the prescription.

The distinguishing work happens in the history, not in the mood you’re sitting with on appointment day. The way the patient feels in the room tells me almost nothing. What I want is the longitudinal arc. Has there ever been a stretch of three or more days where you needed almost no sleep and felt amazing. Have you ever started three projects in a frenzy and abandoned them a week later. Has anyone in your family been diagnosed with bipolar, been hospitalized for mania, completed suicide, or been described by relatives as “the brilliant uncle who lost everything.” Family history matters more in mood disorders than almost anywhere else in psychiatry. Heritability of bipolar I sits around 70 to 85 percent.

Screening tools (the MDQ, the HCL-32) catch some bipolar II that would otherwise be missed, miss plenty too. The art is in the follow-up questions and the follow-up questions take time the field’s reimbursement structure does not want to pay for.

The “I think I have bipolar” appointment

This visit happens at least once a week. Usually somebody in their twenties or thirties who’s been reading online and is convinced they have bipolar II because their mood changes a lot. The honest answer for most of them is no, they don’t.

What’s actually going on, in roughly the order of frequency, is some combination of ADHD, borderline personality features, untreated trauma, sleep deprivation, daily cannabis use, or regular old depression with anxious distress baked in. All of those can produce mood that feels like it’s swinging. The difference is timescale. Bipolar moods come in episodes lasting days to weeks. ADHD and personality-driven mood shifts can rotate in an afternoon. If you went from fine to devastated because your boss sent a curt email at 2pm, that’s not hypomania crashing into depression, that’s emotional reactivity, which is a different problem with different treatments and a different prognosis.

The kind of guy who comes in already on lamotrigine for “bipolar II” diagnosed by an urgent care provider after a ten-minute visit is its own clinical subgenre at this point. Go through the history with him and there are no hypomanic episodes he can actually describe and no family history of bipolar, the “mood swings” turn out to be almost entirely sleep-driven because he’s been working second shift and picking up extra hours. Taper the lamotrigine, fix the sleep, treat the underlying anxiety with sertraline, and the “bipolar” goes quiet. That visit happens often enough that it’s become its own subspecialty inside general psychiatry.

The other thing worth saying, and I’ll say it because nobody seems to: wanting to have bipolar is a thing. It feels like an explanation for years of feeling out of control, it makes the chaos make sense, it gives the years of mess a name that isn’t just “I was being a jerk.” Real bipolar is a serious illness with real costs, the lifetime suicide rate is around 15 percent, the treatment is good but it’s lifelong. When somebody actually has it, the diagnosis is the door to most of the relief they’re going to get. When somebody doesn’t have it, the label can stick for decades and shape decisions about jobs, relationships, and pregnancy in ways that are hard to undo.

What treatment actually looks like

Across all of these, sleep is non-negotiable. Sleep deprivation triggers manic episodes in bipolar patients more reliably than almost any other variable. Alcohol use makes every mood disorder worse and complicates every medication you’ll write on top of it. Cannabis is a coin flip, some patients are fine on it, others get knocked sideways in ways they don’t connect to the weed until somebody points it out and they grumpily test the theory.

Therapy belongs in the picture for almost everyone. CBT for depression has forty years of data behind it. IPSRT (interpersonal and social rhythm therapy, which is just a fancy name for therapy that treats your daily rhythm as part of the prescription, you log bedtime and wake time and meal time and social anchors and over weeks the rhythm gets boring on purpose) was built specifically for bipolar and the rhythm piece matters more than nearly any other intervention. DBT helps when emotional reactivity is the real engine.

What’s nice to hear about all this

The default in psychiatric writing is to lead with the warnings and the risks and bury whatever relief is on offer. Reverse it now. The people who land on the right diagnosis and the right treatment do really well. Not “manageable while still suffering” well, actually well. Say a guy who’s been getting hit by depressive episodes every fall since he was 19 starts lamotrigine, three months later autumn shows up and the depression doesn’t, and that pattern holds for years. Say a regular-depression patient gets a real SSRI trial at a real dose for the full six weeks for the first time in his life and is meaningfully better at week seven. A bipolar I patient settles into lithium plus a low-dose atypical antipsychotic and gets to plan a year out, gets to hold a job for a decade, gets to be a husband and dad without his wife waking up every morning wondering which version of him she’s getting. The mood disorders are among the better-treated illnesses in psychiatry and the patients who finally land the right combo are usually delighted, even if their treatment is “boring” for the rest of their life. Boring is the goal.

Where I land on the medication question, and where you land is yours

Patient autonomy first. If you want medication, you get medication. My job is the honest take on what’s likely to work for whichever flavor of mood disorder is in the room, your job is what you actually do with that information. I’m a provider, not a parent. I hardly ever say no.

Bipolar I is the one place I push hardest on the lifelong-medication side, because each manic episode costs you something compounding and the math just doesn’t favor stopping. For bipolar II, cyclothymia, and regular depression, the conversation has more give in it, plenty of patients do well on medication for a stretch and then come off and stay reasonably stable, plenty of others ride it long term because the cost is low and the benefit is real, and the right answer is whichever one the patient actually wants to try, with somebody honest watching for the signs that the plan needs to change.

The patients who do worst are the ones who chase being cured. They stop their meds during a good stretch, the stretch ends six weeks later in a way that costs them a job or a marriage, and the cycle goes on. The patients who settle into “stable, on medication, my life looks pretty regular” are the ones who do best, and that’s the trade. It’s not glamorous. It’s just how mood disorders are actually managed when they’re being managed well.

Boring is the goal.

Sources

1. Cipriani A, Furukawa TA, Salanti G, et al. Comparative efficacy and acceptability of 21 antidepressant drugs. Lancet. 2018;391(10128):1357-1366. PMID 29477251.
2. Cuijpers P, Karyotaki E, Reijnders M, Ebert DD. Was Eysenck right after all? A reassessment of the effects of psychotherapy for adult depression. Epidemiol Psychiatr Sci. 2019;28(1):21-30. PMID 29486804.
3. Cuijpers P, Karyotaki E, Eckshtain D, et al. Psychotherapy for Depression Across Different Age Groups: A Systematic Review and Meta-analysis. JAMA Psychiatry. 2020;77(7):694-702. PMID 32186668.
4. Gelenberg AJ, Freeman MP, Markowitz JC, et al. Practice guideline for the treatment of patients with major depressive disorder, third edition. American Psychiatric Association. 2010. APA guideline (PDF).
5. Hashimoto Y, Kotake K, Watanabe N, Fujiwara T, Sakamoto S. Lamotrigine in the maintenance treatment of bipolar disorder. Cochrane Database Syst Rev. 2021;9:CD013575. PMID 34523118.
6. Cipriani A, Hawton K, Stockton S, Geddes JR. Lithium in the prevention of suicide in mood disorders, updated systematic review and meta-analysis. BMJ. 2013;346:f3646. PMID 23814104.