Key Takeaways
- A mixed state means symptoms of both poles at once, such as hopelessness while wired, sleepless and racing.
- DSM-5 replaced the old "mixed episode" with a "with mixed features" specifier that can attach to manic, hypomanic or depressive episodes.
- Mixed presentations are common and are linked to higher suicide risk, so they need prompt attention.
- Antidepressants used without a mood stabilizer are avoided because they can worsen mixed and manic symptoms.
- The 2021 CANMAT/ISBD update found no treatment strong enough to call first-line for mixed features.
A mixed state is when symptoms of mania or hypomania and symptoms of depression happen at the same time: feeling hopeless and worthless while your thoughts race, your body cannot rest and sleep will not come. Before 2013 this was called a "mixed episode." DSM-5 replaced that diagnosis with a specifier, "with mixed features," that can be added to a manic, hypomanic or depressive episode. Mixed states matter because they carry a higher risk of suicide and because they change which medications make sense.
Mixed states need prompt attention
When to act now
The combination of despair with agitation, restlessness and little sleep is one to take seriously. If you or someone you love has thoughts of suicide, call or text 988, or chat at 988lifeline.org. If there is a plan, access to a weapon or stored medication, or any immediate danger, call 911 or go to the nearest emergency room. If new agitation or racing thoughts appear after a medication change, call the prescriber the same day. Willow & Stone provides outpatient, scheduled care and is not an emergency service.
From "mixed episode" to "with mixed features"
Under DSM-IV, a mixed episode required a person to meet the full criteria for a manic episode and a major depressive episode simultaneously. Very few people did, so many genuinely mixed presentations went unnamed. According to the American Psychiatric Association's summary of DSM-5 changes, that diagnosis was removed and replaced with a specifier that can be applied:
- to manic or hypomanic episodes when depressive features are present, and
- to depressive episodes, in bipolar disorder or in major depressive disorder, when manic or hypomanic features are present.
For a depressive episode, the specifier requires at least three manic or hypomanic symptoms. The same threshold of three opposite-pole symptoms is standard wording for manic episodes too. The 2022 text revision, DSM-5-TR, kept the approach.
What it looks like from the inside
Mania or hypomania with depressive features
The person has the energy, speed and reduced sleep of an elevated episode, but alongside it come marked sadness, guilt, worthlessness or thoughts of death. Older texts called this "dysphoric mania." People describe feeling trapped in a body that will not stop while their mind tells them everything is hopeless.
Depression with manic or hypomanic features
The person is clearly depressed, but there is also racing or crowded thinking, more talking, a burst of energy or projects, risky behavior, or needing less sleep. From the outside it can look like a depression that is unusually restless and driven. From the inside it is often described as exhausting.
Either form can be brief or can last as long as the episode it attaches to, since the specifier describes an episode rather than standing on its own. For the core symptoms of each pole, see mania symptoms and bipolar depression.
The overlapping-symptom problem
DSM-5 counts only symptoms that clearly belong to the opposite pole. Symptoms that show up in both mania and depression, namely irritability, distractibility and physical agitation, are excluded from the count, as a 2026 review in the mixed-states literature points out. That makes the specifier strict.
How strict became clear in a 2025 study of 160 people in a major depressive episode: 48.8% met a broader research definition of a mixed depression, but only 1.9% met the DSM-5 criteria. Clinicians therefore ask about agitation, irritability and inner restlessness even when they do not "count," because these symptoms still shape risk and treatment.
How common mixed presentations are, and why they matter
They are far from rare. The same 2026 review summarizes systematic reviews estimating that mixed symptoms appear in about 18% of major depressive episodes, 33% of bipolar depressive episodes and 35% of manic or hypomanic episodes. It links mixed presentations to higher suicide risk, a heavier overall illness burden and poorer response to treatment.
A separate review in Current Psychiatry Reports notes that suicide in bipolar disorder is associated with depressed or mixed states rather than with pure mania. The energy of a manic state combined with the hopelessness of depression is part of why safety planning matters so much here.
Why antidepressants alone are avoided
Antidepressant labels warn that, in people at risk of bipolar disorder, treating a depressive episode with an antidepressant alone may set off a mixed or manic episode; the sertraline (Zoloft) label is one example. NIMH states that antidepressants are not used alone in bipolar disorder for this reason.
Guidance on mixed features goes further. Summaries of the International Society for Bipolar Disorders task force advise avoiding antidepressants, or using them with great caution, when mixed features are present. For mania, NICE recommends that if a person is taking an antidepressant on its own, the prescriber should consider stopping it and offer an antipsychotic.
That is a decision for the prescriber, not something to do alone: stopping an antidepressant suddenly can cause its own problems. If you recognize this pattern, call the person who prescribes for you. Antidepressants and bipolar disorder explains when they are still used, always alongside a mood stabilizer.
What the 2021 CANMAT/ISBD mixed-features update says
In 2021 the Canadian Network for Mood and Anxiety Treatments and the International Society for Bipolar Disorders published an update dedicated to mixed presentations. Its headline finding was sobering: no medication met the threshold for first-line treatment of manic or depressive episodes with mixed features.
| Episode type | Second-line options listed in the 2021 update |
|---|---|
| Mania with mixed features | Asenapine, cariprazine, divalproex, aripiprazole |
| Depression with mixed features | Cariprazine, lurasidone (Latuda) |
In practice, treatment leans on mood stabilizers and atypical antipsychotics, with careful attention to sleep, substances and safety, and choices are tailored to the person's history and side-effect risks. For more on these medicines, see antipsychotics for bipolar disorder and bipolar medications explained.
Other conditions that can look mixed
Restlessness plus low mood has more than one explanation. Anxiety disorders are common in bipolar disorder and can produce agitation and racing worry; ADHD brings restlessness and distractibility; borderline personality disorder involves intense, fast-changing emotion. Substances and withdrawal can do all of the above. A thorough evaluation sorts these out, and the pages on bipolar disorder versus anxiety and bipolar versus borderline personality disorder go further.
At Willow & Stone
Mixed symptoms are asked about directly at every bipolar evaluation, because they change the plan. Willow & Stone provides outpatient, scheduled care and is not an emergency service. For how outpatient care works, see bipolar disorder treatment at Willow & Stone, and for the wider context, our complete guide to bipolar disorder.
Common Questions
What is a mixed episode in bipolar disorder?
It is a period when symptoms of mania or hypomania and symptoms of depression occur together. DSM-5 no longer uses "mixed episode" as a diagnosis; instead, a manic, hypomanic or depressive episode is labeled "with mixed features" when enough opposite-pole symptoms are present.
What does a mixed episode feel like?
People often describe being exhausted and hopeless while also wired, restless and unable to sleep, with thoughts that will not slow down. Some feel intense inner tension or irritability. It can be one of the most distressing states in bipolar disorder.
Are mixed episodes dangerous?
They can be. Research links mixed presentations to higher suicide risk and poorer treatment response. If someone in a mixed state talks about suicide, call or text 988, or chat at 988lifeline.org; if there is immediate danger, call 911 or go to an emergency room.
What is dysphoric mania?
It is an older term for mania accompanied by depressive symptoms such as sadness, guilt or hopelessness. Under DSM-5 it would usually be described as a manic episode with mixed features.
Can you have mixed features without bipolar disorder?
Yes. DSM-5 allows the "with mixed features" specifier in major depressive disorder as well. Manic symptoms during a depression raise a clinician's concern about bipolar disorder and make them more cautious with antidepressants, but they do not prove the diagnosis.
How is a mixed episode treated?
Treatment usually centers on mood stabilizers and atypical antipsychotics rather than antidepressants. The 2021 CANMAT/ISBD update found no option strong enough to call first-line, so prescribers choose among second-line medicines based on the person's history, side-effect risks and preferences, alongside sleep protection and a safety plan.
How long do mixed episodes last?
Because mixed features are attached to a manic, hypomanic or depressive episode, they last as long as that episode, which means at least a week for mania, four days for hypomania or two weeks for depression. Treatment can shorten them.
Part of our bipolar disorder guide
Sources & Further Reading
- APA: Highlights of Changes from DSM-IV-TR to DSM-5 (2013)
- Yatham et al., CANMAT/ISBD 2021 update on mixed presentations, Bipolar Disord 2021
- Vázquez et al., Mixed symptoms in mood disorders: a historical, clinical and therapeutic review, 2026
- Takeshima & Inoue, What is the depressive mixed state?, 2025
- DailyMed: ZOLOFT (sertraline) prescribing information
- Pacchiarotti et al., ISBD task force on antidepressants, Am J Psychiatry 2013
- NICE CG185: Bipolar disorder, recommendations (updated 2 Sept 2025)
- Miller & Black, Bipolar Disorder and Suicide: a Review, Curr Psychiatry Rep 2020
This article is general education, not a diagnosis or advice for your situation. Do not start, stop, or change a medication without talking to the clinician who prescribes it; stopping a mood stabilizer suddenly can trigger relapse.
If you need help right now
Willow & Stone is an outpatient practice and is not an emergency service. If you or someone you care about is in immediate danger, call 911.
For urgent mental health support at any hour, call or text 988 to reach the Suicide & Crisis Lifeline, or text HOME to 741741 for the Crisis Text Line. Both are free, confidential, and available 24/7 nationwide.
Dr. Stacey Forbes, DNP, APRN, PMHNP-BC
Board-certified Psychiatric-Mental Health Nurse Practitioner and founder of Willow & Stone Integrative Mental Health. Nearly two decades of clinical experience; integrative, root-cause psychiatry in person in Arlington and by telehealth. Licensed in Texas, New Mexico, Florida, Alaska, Arizona, Colorado & Washington.
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