Autism New Zealand Has Serious Concerns About Misleading Claims Around Autism And Paracetamol

Autism New Zealand expresses serious concern regarding the recent announcement by U.S. President Donald J. Trump and Health and Human Services Secretary Robert F. Kennedy Jr. linking prenatal paracetamol (Tylenol/acetaminophen) use to autism, and promoting leucovorin as a treatment for certain autism symptoms.

While we welcome thoughtful, evidence-based research into autism, statements that conflate association with causation without robust scientific proof can cause significant harm. Autistic people, parents/caregivers, families/whanau, and health professionals deserve clarity and sensitivity, not fear or misunderstanding.

Key Concerns

Lack of scientific support

The current research does not demonstrate that taking paracetamol during pregnancy causes autism. Some observational studies suggest weak associations, but many higher quality and sibling-controlled studies, do not show a causal link. Confounding variables, such as infections, underlying health conditions, or reporting biases, can distort findings. Potential for maternal blame and anxiety

Suggesting that mothers’ use of common pain relief medications could be causative places undue burden and blame on them. Pregnancy is already a time of heightened concern, and messaging like this can lead to fear, stress, and possibly harmful behaviour (e.g. avoiding needed medication) without evidence of benefit.

Risks of premature medical endorsements

Introducing or promoting treatments (such as leucovorin) for autism symptoms, before extensive peer-reviewed confirmation, understanding of long-term safety, population subtypes, and independent replication, raises risks. Families may be misled about potential outcomes or misunderstand what “treatment” implies. Autism is a spectrum, and therapies need to be individually appropriate and holistic.

Need for inclusive, co-produced research and policy

Autistic people, scientists, clinicians, and family/whanau should all be involved in research design, interpretation, and policy statements. Decisions should be informed by the strongest available science, ethical oversight, transparency, and clear communication of uncertainty.

Need for a neuroaffirming approach

The narrative around ‘cures’, ‘treatments’, or ‘answers’ to autism send a message that there is something wrong with autistic people that needs to be fixed. On the contrary, autism is not a bad thing. It is a form of neurodivergence which is part of natural human variation.

Autism New Zealand’s Position

We call for responsible, evidence-based communication from political leaders, especially on health matters affecting vulnerable populations and pregnant people. We support continued high-quality research into environmental, genetic, prenatal, and postnatal factors, recognising that autism is highly complex and multifactorial. We affirm that treatment and support for autistic people should be grounded in their needs, strengths, and rights, not in simplistic narratives or fearmongering. We urge health authorities globally and in New Zealand to monitor developments, ensure public health guidelines remain grounded in peer-reviewed science, and protect pregnant people’s access to accurate, balanced information.

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