Indications for Abilify (Aripiprazole)
Aripiprazole (Abilify) is FDA-approved for the treatment of schizophrenia, bipolar I disorder (manic and mixed episodes), and as an adjunctive therapy to antidepressants for major depressive disorder. 1, 2, 3
FDA-Approved Indications
Primary Indications
Schizophrenia
Bipolar I Disorder
Major Depressive Disorder (MDD)
Additional Approved Uses
- Irritability associated with autism 3
Pediatric Indications
Bipolar I Disorder (manic/mixed episodes)
Schizophrenia in adolescents
Pharmacological Properties
Aripiprazole has a unique mechanism of action that contributes to its efficacy and side effect profile:
- Partial agonist at dopamine D2 and D3 receptors 2, 5, 6
- Partial agonist at serotonin 5-HT1A receptors 2, 5, 6
- Antagonist at 5-HT2A receptors 2, 5, 6
Advantages Over Other Antipsychotics
- Low propensity for weight gain 2, 4
- Favorable metabolic profile 2, 4
- No association with hyperprolactinemia 2, 4
- Lower incidence of extrapyramidal symptoms compared to typical antipsychotics like haloperidol 6, 4
- No significant QT interval prolongation 6, 4
Dosing Considerations
- Schizophrenia: 10-30 mg/day 2
- Bipolar I Disorder: 15-30 mg/day 2
- MDD (adjunctive): Typically started at lower doses
- No dosage titration necessary for most patients 4
- Rapid onset of action, often within the first or second week of treatment 4
Important Clinical Considerations
- Aripiprazole may cause akathisia, particularly when used for bipolar disorder or depression 3, 6
- Gastrointestinal complaints may occur at treatment initiation but are often time-limited 2
- Lower starting doses may be appropriate when adding to or switching from another antipsychotic 2
- Long-term efficacy has been demonstrated for up to 52 weeks in schizophrenia 4
- May improve cognitive function in patients with schizophrenia 4
Comparative Efficacy
For schizophrenia, aripiprazole appears to be:
- Superior to placebo and haloperidol (long term)
- Similar in efficacy to perphenazine and risperidone
- Possibly inferior to olanzapine in efficacy, but with better tolerability profile 2
Aripiprazole represents a valuable treatment option with a unique pharmacological profile that offers efficacy across multiple psychiatric conditions while maintaining a favorable side effect profile compared to many other antipsychotic medications.