Yes, Abilify is available in a 2.5 mg dosage form
Abilify (aripiprazole) tablets are manufactured in a 2 mg strength, but not in a 2.5 mg strength. However, the 2.5 mg dose is commonly used in clinical practice, particularly in pediatric populations and when initiating therapy in sensitive patients, by splitting or adjusting available tablet strengths 1.
Available Tablet Strengths
According to the FDA-approved labeling, Abilify tablets are available in the following strengths 1:
- 2 mg (green, modified rectangle)
- 5 mg (blue, modified rectangle)
- 10 mg (pink, modified rectangle)
- 15 mg (yellow, round)
- 20 mg (white, round)
- 30 mg (pink, round)
Clinical Use of 2.5 mg Dosing
While there is no commercially available 2.5 mg tablet, this dose is frequently prescribed and achieved through:
Pediatric and Special Populations:
- Multiple clinical guidelines reference 2.5 mg as a starting dose for children and adolescents 2, 3
- In autism spectrum disorder treatment, aripiprazole dosing begins at 2.5 mg daily in children ages 6-17 years 3
- One open-label study specifically initiated treatment with 2.5 mg in children and adolescents with conduct disorder 4
Practical Administration:
- The 2.5 mg dose can be achieved by splitting a 5 mg tablet in half
- Alternatively, clinicians may use the 2 mg tablet and supplement with partial tablets to approximate 2.5 mg
- For delirium management in cancer patients, guidelines recommend starting doses as low as 2.5 mg in older or frail patients 2
Important Considerations
When 2.5 mg dosing is appropriate:
- Initiating therapy in children and adolescents
- Elderly or frail patients requiring lower starting doses
- Patients with hepatic impairment
- Dose titration from 2 mg when 5 mg is too large an increment
The absence of a manufactured 2.5 mg tablet does not preclude its clinical use, as tablet splitting is an accepted practice for achieving intermediate doses when clinically indicated.