Aripiprazole for irritability in autistic children: what two studies found

In one sentence

Two clinical studies suggest that aripiprazole may help some autistic children become less irritable and hyperactive over the short term, though side effects can be significant and need careful monitoring.

What the researchers did

Families sometimes consider medication when an autistic child is struggling with severe irritability, emotional outbursts, aggression, or very high levels of hyperactivity.

In this Cochrane review, researchers looked at two clinical trials involving 316 autistic children and teenagers. Both studies lasted about eight weeks and compared aripiprazole with placebo.

The researchers tracked changes in behavior, including irritability, hyperactivity, and repetitive behaviors, while also monitoring side effects.

Aripiprazole belongs to a group of medications often used to help stabilize mood and behavior. It does not “treat autism itself,” but it is sometimes prescribed to reduce particularly difficult behaviors that interfere with daily life.

What they found

Overall, children taking aripiprazole tended to show lower levels of irritability and hyperactivity than children taking placebo.

Some repetitive behaviors also appeared to improve slightly during treatment.

At the same time, side effects were common enough that researchers stressed the importance of medical supervision.

Children taking aripiprazole were more likely to gain weight, feel sleepy or unusually tired, and develop movement-related side effects such as tremor. Some children in the studies also experienced increased drooling.

The review only looked at short-term treatment lasting about two months, so it does not tell us much about what happens over longer periods of use.

What this means for families and therapists

For some autistic children with severe irritability or emotional outbursts, aripiprazole may reduce distress and make everyday life more manageable.

But the medication should not be viewed as a cure for autism or as a replacement for communication support, skill-building, therapy, or environmental adjustments.

When families and clinicians discuss aripiprazole, it can help to talk clearly about:

• what behaviors they hope to improve;
• how progress will be measured;
• what side effects need monitoring;
• and when the treatment plan should be reviewed or changed.

For many families, the decision comes down to balancing possible behavioral improvements against side effects such as weight gain and sedation.

Limitations and what we don't know yet

Only two short-term studies were included in this review, so the evidence remains limited.

The studies focused on children and teenagers, meaning the findings may not apply to autistic adults.

Researchers also still know relatively little about long-term effects, especially around weight, metabolism, and overall health after extended use.

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This is a simplified summary of Aripiprazole for autism spectrum disorders (ASD) by Ching H, Pringsheim T, Cochrane Database of Systematic Reviews (2012).

Source license: CC-BY-NC-4.0.

This is not medical advice. Please consult a qualified healthcare professional before making treatment decisions.