If you’ve been on social media at any point since September 2025, you’ve probably seen heated arguments about Tylenol, autism, ADHD and Donald Trump. Depending on your feed, you’ll have seen everything from claims that painkillers in pregnancy “cause autism” to conspiracy posts insisting “they” are hiding the truth.
For a lot of parents, pregnant people and neurodivergent adults, it has been genuinely upsetting. Here is what the evidence actually says, and why the way this story has been told matters well beyond one medicine.
The short version
There is no good evidence that taking paracetamol (sold as Tylenol in the US) during pregnancy causes autism or ADHD. Some studies have found associations, but associations don’t prove cause, and the strongest research to date found none once family factors were taken into account. Health regulators in the UK and US professional bodies still say paracetamol is the recommended choice for pain and fever in pregnancy, used as directed, because untreated fever and pain carry their own risks. If you are pregnant and worried, talk to your GP, midwife or pharmacist, not TikTok.
Why it suddenly blew up
In September 2025, President Trump used a White House press conference to link Tylenol use in pregnancy to autism and urged pregnant women to avoid it. He repeated long-discredited claims about vaccines in the same breath. The medical community pushed back fast, but the clips had already spread.
Social media did the rest. A serious, emotional topic, simplified into extremes, is exactly what algorithms reward. No wonder so many people felt anxious and unsure who to believe.
What the research says
The most robust study so far was published in JAMA in April 2024. Researchers followed more than two million children born in Sweden. Looked at crudely, there was a very small increase in autism and ADHD diagnoses among children exposed to paracetamol before birth. But when they compared siblings, who share much of their genetics and home environment, that difference disappeared. The US National Institutes of Health summarised it plainly: no causal link.
In the UK, the medicines regulator responded to the Trump comments directly. The MHRA confirmed that paracetamol remains safe in pregnancy and stated: “There is no evidence that taking paracetamol during pregnancy causes autism in children.”
What about the court cases?
This part has moved on since the story first broke. In the US, more than 500 private lawsuits against Tylenol’s maker were dismissed in December 2024 after a federal judge ruled the families’ expert evidence unreliable. In July 2026, the federal appeals court for the Second Circuit revived them, finding that the judge had been wrong to exclude three of those experts.
It is worth being precise about what that means. The appeals court said explicitly that it was not deciding whether paracetamol causes autism or ADHD. It ruled on whether the experts’ testimony could be heard, and noted that scientists disagree about how to read the evidence. The cases now go back to the trial court. A procedural ruling is not new science, and the regulators’ position has not changed.
Why this feels so divisive
Neurodiversity has become a political talking point, something people use to score points and stir outrage. It is the same pattern we’ve seen with vaccines and mental health: a complex issue squeezed into two angry camps.
The cost falls on real people. Autistic people, ADHDers and other neurodivergent people end up being talked about rather than listened to. Parents are left feeling guilty. Pregnant people feel anxious about a common painkiller. And the framing itself, that autism is a catastrophe to be explained away by a single cause, treats neurodivergent people as a problem rather than as part of normal human variation.
It also skips the more likely explanation for rising diagnosis numbers. Autism and ADHD are strongly heritable and have always existed. What has changed is awareness, diagnostic criteria and access to assessment, particularly for women and adults. We wrote about this in why the rise in ADHD diagnoses is not an epidemic and in our piece on late diagnosis in adulthood.
How to read health stories online
A few habits help when everyone online seems certain they are right.
Check who is saying it. A regulator, a medical body or a peer-reviewed study carries more weight than an influencer with something to sell.
Notice how it makes you feel. If a post makes you furious, frightened or desperate to share it, slow down. Outrage spreads faster than accuracy.
Remember that a link is not a cause. Two things happening together does not mean one caused the other. That was exactly the issue the sibling study was designed to test.
Ask the right people. For questions about medicine in pregnancy, speak to a GP, midwife or pharmacist. For questions about neurodivergence or assessment, speak to a qualified clinician.
Why this matters at work too
We see the effects of misinformation in workplaces all the time. Myths about what it means to be autistic, ADHD or dyslexic shape how colleagues and managers treat people, and the loudest opinions rarely come from people with lived experience. Our article on common myths about neurodiversity at work tackles some of the most persistent ones, and the cost of stigma shows what is at stake for neurodivergent employees.
The fix is not more noise. It is accurate information, lived experience and practical tools that turn awareness into understanding.
How Enna can help
If misinformation is showing up in your organisation, the best counter is a shared, accurate understanding. Our Neurodiversity 101 workshop gives teams a grounded introduction built on evidence and lived experience, and Allyship in Action helps colleagues respond well when myths come up. Book a call to talk about what would work for your teams.
If you are neurodivergent and looking for an employer that gets it, browse roles on the Enna jobs board.
