Standard Dosing Schedule for Aristada
Aristada (aripiprazole lauroxil), a long-acting injectable antipsychotic for schizophrenia, is administered intramuscularly every 4 to 8 weeks. The exact frequency depends on the dose strength and patient response:
- 441 mg dose: Every 4 weeks.
- 662 mg dose: Every 4 weeks.
- 882 mg dose: Every 4 weeks or 6 weeks.
- 1064 mg dose: Every 6 or 8 weeks.
Treatment starts with a one-time 30 mg oral aripiprazole dose on day 1, followed by the first Aristada injection 21 days later. Ongoing doses follow the chosen interval.[1]
How Providers Choose the Frequency
Dosing intervals are selected based on tolerability, symptom control, and clinician judgment. Shorter intervals (4 weeks) suit patients needing steady-state coverage faster, while longer ones (6-8 weeks) reduce injection visits for stable patients. Adjustments require monitoring for efficacy and side effects like akathisia or weight gain.[1][2]
What If a Dose Is Missed?
If delayed by less than the interval (e.g., up to 4 weeks for a 4-week schedule), administer as soon as possible, then resume the original schedule. Beyond that, consult guidelines: restarting may need oral supplementation to avoid relapse. No double-dosing.[1]
Comparison to Other Long-Acting Injectables
Aristada's 4-8 week options are more flexible than monthly-only options like Invega Sustenna (every 4 weeks) but less frequent than Abilify Maintena (every 4 weeks typically). Aristada Initio allows same-day initiation without oral lead-in for some conversions.[2]
Administration Details and Patient Tips
Injections go into the gluteal or deltoid muscle by healthcare professionals only. Rotate sites to minimize pain. Patients report less discomfort with higher-volume, longer-interval doses. Storage is refrigerated; warm to room temperature before use.[1]
[1]: Aristada Prescribing Information (Alkermes)
[2]: Drugs.com - Aristada Dosing