School-aged outcomes after prenatal opioid exposure with Louise MarryatSchool-aged outcomes after prenatal opioid exposure with Louise Marryat
Addiction Audio
Dr Elle Wadsworth talks with Dr Louise Marryat about a systematic review on school-aged outcomes after prenatal opioid exposure, focusing on vision, ADHD and major evidence gaps. They discuss what the data suggests so far, the limits of current research, and what this might mean for early support and information for families and professionals.
18:14•7 Aug 2026
School-Age Outcomes After Prenatal Opioid Exposure: What the Evidence Really Says
Episode Overview
- Visual problems, such as strabismus and nystagmus, show the clearest and most consistent link with prenatal opioid exposure.
- There is evidence of increased hyperactivity and inattention, including ADHD diagnoses, among school-aged children with prenatal opioid exposure.
- Most available research comes from small samples and primary-school-aged children, with very limited data on adolescents or social outcomes.
- Early identification and intervention, particularly around vision and behavioural difficulties, may improve outcomes for exposed children.
- Women using opioids in pregnancy often want clear information about potential impacts, but messaging must avoid discouraging essential medication without medical advice.
“One of the things we haven’t said is that actually most of these kids are doing really well.”
What insights can experts and survivors share about addiction? Here, the focus shifts to before birth, as Dr Elle Wadsworth chats with Dr Louise Marryat about what happens to children who were exposed to illicit opioids during pregnancy once they reach school age. Aimed at researchers, clinicians, policy folk and anyone interested in the long-term effects of substance use in families, the conversation walks through Louise’s systematic review of studies from the last decade.
She explains how her team sifted thousands of papers down to 27 reasonably robust studies, all from high-income countries, to look at health, social and educational outcomes in childhood. You’ll hear clear explanations of what counts as prenatal opioid exposure in this context – mainly heroin and medication-assisted treatment such as methadone and buprenorphine, not pain relief or labour medications.
Louise outlines the strongest findings: a consistent link with vision problems such as strabismus and nystagmus, and an increased likelihood of hyperactivity and inattention, including ADHD diagnoses. As she puts it, “there were no studies that didn’t find that link” between exposure and visual outcomes. The episode doesn’t shy away from the limits of current evidence.
Many studies have small samples, most children studied are still in primary school, and there’s almost no data on adolescent mental health or later substance use. Social outcomes, like child–parent relationships or child removal, are barely covered at all. For practitioners and families, the conversation highlights practical implications: the importance of early vision checks, spotting behavioural difficulties, and making sure parents and carers are properly informed without being scared away from essential medication.
Louise stresses a balanced message, reminding everyone that “most of these kids are doing really well,” while arguing for better data, earlier support and more joined-up international research. If you care about how early life exposure shapes children’s futures, this one might get you asking: are current systems really spotting those kids who need extra help?

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