Abilify vs. Risperdal

See how Abilify and Risperdal compare on approved uses, dosing, side effects, and cost.

Linda Girgis | MD

Medically reviewed by Linda Girgis | MD, Girgis Family Medicine on August 23rd, 2026.

Key Takeaways

  • Abilify and Risperdal are both atypical antipsychotics approved for schizophrenia and bipolar I disorder, but they act on dopamine differently and cause different side effects.

  • Abilify is a partial dopamine agonist and is less likely to raise prolactin, while Risperdal tends to cause more sedation and prolactin-related effects.

  • Both drugs carry a boxed warning against use in elderly patients with dementia-related psychosis, and neither is approved for that use.

Abilify vs. Risperdal Drug Summary

Abilify

Abilify (aripiprazole) is an atypical antipsychotic used for schizophrenia, bipolar I disorder, and as an add-on treatment for depression. It's taken as a once-daily tablet, usually starting at 10 mg to 15 mg per day and adjusted based on response.

Risperdal

Risperdal (risperidone) is an atypical antipsychotic used for schizophrenia, bipolar I disorder, and irritability linked to autism in children. It comes as a tablet, dissolving tablet, or liquid, typically started at 2 mg once daily and increased to a maintenance dose.

Abilify vs. Risperdal Side Effects

Abilify

Most common
Insomnia (up to 18%)
Nausea (up to 14%)
Dizziness (up to 10%)
Akathisia (up to 8%)

Risperdal

Most common
Insomnia (up to 32%)
Nausea (up to 11%)
Dizziness (up to 14%)
Akathisia (up to 11%)

Abilify vs. Risperdal Dosage

Abilify

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 10 mg to 15 mg once daily Day 1
Maximum dose Up to 30 mg once daily If needed
Dose changes 2 increases As tolerated

Risperdal

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 2 mg once daily Day 1
Maximum dose 4 mg to 8 mg daily If needed
Dose changes 1 increase As tolerated

Abilify vs. Risperdal Indications

Abilify

Abilify is FDA-approved for schizophrenia in adults and adolescents, acute manic or mixed episodes of bipolar I disorder, and as an add-on treatment for major depressive disorder. It's also approved for irritability linked to autistic disorder and for Tourette's disorder in children and adolescents.

  • Schizophrenia (adults and adolescents 13-17)

  • Bipolar I disorder, alone or as an add-on

  • Add-on treatment for major depressive disorder

  • Irritability associated with autistic disorder (ages 6-17)

  • Tourette's disorder (ages 6-18)

Risperdal

Risperdal is FDA-approved for schizophrenia in adults and adolescents, acute manic or mixed episodes of bipolar I disorder, and irritability associated with autistic disorder in children and adolescents. It's sometimes used off-label for tic disorders or as an add-on for treatment-resistant OCD.

  • Schizophrenia (adults and adolescents 13-17)

  • Bipolar I disorder, with or without lithium/valproate

  • Irritability associated with autistic disorder

  • Off-label: tic disorders/Tourette syndrome

  • Off-label: augmentation for treatment-resistant OCD

Abilify vs. Risperdal Pros and Cons

Abilify

Abilify's partial dopamine agonism makes it less likely to raise prolactin than many antipsychotics, though it tends to be more activating. Generic aripiprazole is inexpensive, but brand-name Abilify and its long-acting injectable forms cost significantly more.

Pros

  • Less likely to raise prolactin than Risperdal

  • Also approved as an add-on for depression

  • Available as a once-monthly long-acting injectable

  • Tablet with digital sensor option (Abilify Mycite)

Cons

  • More likely to cause akathisia and restlessness

  • Can be activating, which may worsen insomnia or anxiety

  • More tablet strengths to manage if adjusting dose

  • Brand-name price runs roughly $580 to $890 per month before insurance and savings programs

Risperdal

Risperdal's stronger dopamine blockade can cause more sedation and a higher risk of prolactin-related effects than Abilify, though it has one of the longest track records among atypical antipsychotics. Its generic form and lower brand price make it a more budget-friendly option for many patients.

Pros

  • Long track record, approved for autism-related irritability since 2006

  • May cause less activation and insomnia than Abilify for some patients

  • Available in tablet, dissolving tablet, and liquid forms

  • Brand-name price is roughly $185 to $625 per month before insurance, generally less than Abilify

Cons

  • Higher risk of prolactin elevation, which can cause menstrual changes or breast enlargement

  • More sedating, with higher rates of somnolence than Abilify

  • Orthostatic hypotension risk, especially during initial titration

  • Higher rate of parkinsonism-type movement side effects

Common Symptoms and Related Diseases You Can Explore

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