If you ask people living with schizophrenia what part of their illness is hardest, many won't name the voices or the delusions — they'll name the anxiety. The constant, low hum of dread before leaving the house. The panic that comes when a stranger glances over. The social anxiety that makes returning to work feel unscalable. Anxiety is one of the most under-discussed dimensions of schizophrenia, partly because it tends to be overshadowed by the more dramatic positive symptoms, and partly because clinicians don't always ask.
Roughly half of people with schizophrenia meet criteria for a co-occurring anxiety disorder at some point in their lives — and treating the anxiety, separately from the psychosis, can make a substantial difference to quality of life.
How common is it?
A frequently cited 2014 meta-analysis in Schizophrenia Research by Achim and colleagues found that around 38% of people with schizophrenia met criteria for at least one anxiety disorder. Lifetime estimates rise to roughly 50%. The most common are:
- Social anxiety disorder — around 15%
- Generalized anxiety disorder — around 10–15%
- Panic disorder — around 10%
- OCD — around 12% (covered separately in our OCD article)
- PTSD — around 12% (see PTSD article)
Why anxiety and schizophrenia overlap
- Shared biology: dysregulation in stress-response systems (HPA axis, amygdala) underlies both
- Genetic overlap: many of the same risk genes appear in both conditions
- Reaction to symptoms: hearing voices, holding distressing beliefs, or feeling watched generates real, secondary anxiety
- Stigma and isolation: years of feeling different produce well-earned social anxiety
- Antipsychotic side effects: akathisia in particular feels indistinguishable from severe anxiety
Why anxiety often gets missed
Clinicians are trained to focus on positive and negative symptoms; anxiety can be mistaken for paranoia, agitation, or akathisia. People with schizophrenia themselves may not separate "anxiety" from "the way things feel." Negative symptoms can mask anxiety — the person isn't avoiding social situations because they're flat, they're avoiding because the dread is unbearable.
The link with akathisia
Akathisia — a medication-induced restless distress — feels exactly like severe anxiety from the inside. Before treating "new anxiety" on an antipsychotic, the prescriber should consider whether akathisia is driving it. See our akathisia guide.
What treatment looks like
1. Optimise the antipsychotic regimen
Sometimes anxiety reduces dramatically when the psychosis stabilises. Sometimes it gets worse on a particular agent. Reviewing the medication with the prescriber is the first step.
2. CBT — sometimes adapted for psychosis
Cognitive behavioural therapy for anxiety is well-evidenced even in people with schizophrenia, with some adaptations. CBT for psychosis (CBTp) approaches integrate work on anxiety, particularly anxiety driven by paranoid beliefs.
3. SSRIs and SNRIs
Selective serotonin reuptake inhibitors (e.g., sertraline, escitalopram) and SNRIs (e.g., venlafaxine) are commonly added when anxiety is moderate to severe. They are generally well tolerated alongside antipsychotics, though some interactions exist (notably fluoxetine and fluvoxamine raising clozapine levels). The prescriber will choose carefully.
4. Limiting benzodiazepines
Benzodiazepines (e.g., lorazepam, clonazepam) work fast for anxiety, but long-term use carries serious risks — dependence, cognitive impairment, falls, and a notable association with mortality in serious mental illness. They are best reserved for short-term, targeted use.
5. Lifestyle levers
- Regular aerobic exercise reduces baseline anxiety
- Improving sleep calms the autonomic nervous system
- Reducing caffeine — particularly important on antipsychotics
- Mindfulness practices, with appropriate adaptation, have evidence in psychosis
- Limiting cannabis and stimulants
6. Acceptance-based approaches
Acceptance and Commitment Therapy (ACT) reframes the goal from "eliminate the anxiety" to "live well alongside it" — often more achievable when anxiety is chronic.
Social anxiety in particular
Social anxiety in schizophrenia is its own beast. Years of stigma, missed milestones, and self-consciousness about cognitive symptoms compound into a real and rational reluctance to engage. Effective approaches include graded exposure (small, repeated steps), peer-led groups (where the social bar is lower), and supported employment programs designed for serious mental illness.
Panic in psychosis
Panic attacks in schizophrenia can sometimes be misinterpreted (by patient or clinician) as a worsening of psychosis. The distinguishing feature is usually the body — heart racing, hyperventilation, dizziness, sense of doom — appearing in episodes that peak within minutes and subside within an hour. Standard panic interventions (slow breathing, grounding, CBT) work.
Putting it all together
Anxiety in schizophrenia deserves to be named, measured, and treated as a problem in its own right — not assumed to be a side effect of psychosis or a side effect of the medication. When it's addressed directly, day-to-day life often improves more than any other single intervention provides. Talk to your clinician specifically about anxiety. Bring concrete examples. Ask whether akathisia could be in the mix. The conversation is worth having.
This article is for educational purposes only and is not medical advice, diagnosis, or treatment. Always consult a qualified mental health professional. If you or someone you know is in crisis, call or text 988 in the US, or your local emergency number.