Abilify vs. Seroquel
See how Abilify and Seroquel compare on approved uses, dosing, side effects, and cost.
Medically reviewed by Linda Girgis | MD, Girgis Family Medicine on August 23rd, 2026.
Key Takeaways
Abilify and Seroquel are both atypical antipsychotics used for schizophrenia, bipolar disorder, and as an add-on for depression, but they work on brain chemistry differently.
Abilify tends to cause less sedation and weight gain, while Seroquel is more likely to cause drowsiness and increased appetite, which can be helpful or unwanted depending on the person.
Seroquel needs a multi-day dose increase when starting treatment, while Abilify is usually started at a steady daily dose without that ramp-up period.
Abilify vs. Seroquel Drug Summary
Abilify
Abilify (aripiprazole) is an atypical antipsychotic that partially activates dopamine and serotonin receptors instead of fully blocking them. It is FDA approved for schizophrenia, bipolar I disorder, and as an add-on to antidepressants for major depressive disorder, along with certain pediatric uses. It is taken as a tablet, dissolving tablet, or liquid once a day, with or without food.
Seroquel
Seroquel (quetiapine) is an atypical antipsychotic that blocks dopamine and serotonin receptors to calm psychotic and mood symptoms. It is FDA approved for schizophrenia, bipolar I disorder including mania, depression, and maintenance, and as an add-on for major depressive disorder. It is taken as a tablet, usually once or twice a day, with the dose built up gradually over the first several days.
Abilify vs. Seroquel Side Effects
Abilify
Seroquel
Abilify vs. Seroquel Dosage
Abilify
Seroquel
| STAGE | DOSE | WHEN |
| Starting dose | 10 or 15 mg once daily | Day 1 |
| Maximum dose | Up to 30 mg/day | If needed |
| Dose changes | 2 increases | As tolerated |
| STAGE | DOSE | WHEN |
| Starting dose | 50 mg/day | Day 1 |
| Maximum dose | 300-800 mg/day (max 800) | If needed |
| Dose changes | 4 increases | Every day |
Abilify
| STAGE | DOSE | WHEN |
| Starting dose | 10 or 15 mg once daily | Day 1 |
| Maximum dose | Up to 30 mg/day | If needed |
| Dose changes | 2 increases | As tolerated |
Seroquel
| STAGE | DOSE | WHEN |
| Starting dose | 50 mg/day | Day 1 |
| Maximum dose | 300-800 mg/day (max 800) | If needed |
| Dose changes | 4 increases | Every day |
Abilify vs. Seroquel Indications
Abilify
Abilify is FDA approved for schizophrenia in adults and teens, bipolar I disorder including manic and mixed episodes, and as an add-on treatment for major depressive disorder in adults. It also has pediatric approvals for irritability linked to autism and for Tourette's disorder tics.
Schizophrenia (ages 13 and up)
Bipolar I disorder, manic or mixed episodes
Add-on for major depressive disorder
Irritability with autistic disorder (ages 6-17)
Tourette's disorder tics (ages 6-18)
Seroquel
Seroquel is FDA approved for schizophrenia in adults and teens, and for bipolar I disorder, covering manic episodes, depressive episodes, and long-term maintenance alongside lithium or divalproex. The extended-release form also has an add-on approval for major depressive disorder in adults.
Schizophrenia (ages 13 and up)
Bipolar I disorder, manic episodes
Bipolar depression, as monotherapy
Maintenance of bipolar I disorder (with lithium or divalproex)
Add-on for major depressive disorder (XR only)
Abilify vs. Seroquel Pros and Cons
Abilify
Abilify's partial dopamine agonism tends to cause less sedation and less weight gain than many other atypical antipsychotics. Generic aripiprazole is widely available and typically covered by insurance, though restlessness and sleep disruption are common trade-offs.
Pros
Lower risk of significant weight gain and metabolic changes than quetiapine
Long-acting monthly or every-2-month injection options exist for adherence support
No multi-day dose ramp-up needed to reach an effective starting dose
Less likely to cause daytime sedation
Cons
Akathisia (inner restlessness) is a distinctly common side effect
Insomnia is a common side effect, which can be a problem for people who already sleep poorly
Not FDA approved for treating bipolar depression on its own
Requires periodic monitoring for involuntary movement symptoms
Seroquel
Seroquel's stronger sedating and antihistamine-like effects make it useful for people whose mood symptoms come with agitation or insomnia. Generic quetiapine is widely available and inexpensive, but it carries a heavier burden of sedation, weight gain, and titration steps.
Pros
FDA approved for bipolar depression as a standalone treatment
Sedating effect can help with sleep and agitation for some patients
Extended-release (XR) version allows once-daily dosing
Broad dose range allows fine-tuning across mild to severe episodes
Cons
Higher rates of somnolence and weight gain than aripiprazole
Requires a multi-day dose increase at the start of treatment
Recommended eye exams to monitor for cataracts with long-term use
No long-acting injectable version available
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