Tylenol & Autism in Pregnancy: What the 2026 Study Found

If you are pregnant and you scroll social media, you have probably seen it: reels and videos claiming that taking Tylenol (acetaminophen) during pregnancy causes autism. The claims are loud, emotional — and now the subject of a 2026 study presented at the American Academy of Pediatrics national conference that measured exactly how misinformation on this topic spreads. Here is what happened, what the research actually says, and how to protect yourself from health misinformation.

What went viral: the timeline

• September 22, 2025: The US Food and Drug Administration (FDA) announced label changes for acetaminophen products such as Tylenol, warning that use during pregnancy may be associated with an increased risk of neurodevelopmental and neurologic disorders in children (Medical Xpress).
• September 2025: Around the same time, the US president publicly urged pregnant women not to take the painkiller, and federal health officials launched a campaign "to inform families" about the claimed link — despite a lack of supporting evidence, medical news outlets reported.
• October 2–6, 2026: Researchers presented two related studies at the American Academy of Pediatrics (AAP) 2026 National Conference & Exhibition in San Diego, measuring how the claim spread on TikTok — and how rarely health institutions pushed back.
• October 2026: The debate is still live on social media, with new viral reels both claiming and debunking the link collecting thousands of comments this week.

The 2026 study, in numbers

The main study, led by medical student Shivani Srivastava at Rutgers New Jersey Medical School, analyzed 53 TikTok videos posted between September and November 2025 — right after the FDA announcement. The findings, reported by HealthDay, Healio, CIDRAP and Medical Xpress:

• About 53% of the videos contained evidence-consistent information
• About 28% contained outright misinformation
• Despite being the smaller group, misinformation videos got more than half of all views
• A single misinformation video reached 10.3 million views — 36.6% of all exposure in the sample
• Nearly three-quarters of the misinformation videos were created by influencers, not medical professionals

"TikTok's algorithm amplified low-quality, conspiracy-framed videos containing misinformation on a very sensitive health topic," Srivastava said. A companion study presented at the same conference found that most public health agencies did not address the controversy on social media in a timely fashion — leaving the field open to influencers (CIDRAP).

What the science actually says

Before the claim spreads further, here is where the evidence stands:

• Research has found no association between acetaminophen use in pregnancy and the risk of autism spectrum disorder or ADHD in children (CIDRAP).
• The American College of Obstetricians and Gynecologists (ACOG) refutes the claim that the medicine poses such dangers (HealthDay).
• Medical commentators point to a large 2025 sibling-controlled study of millions of children: the small apparent association between acetaminophen and autism disappeared when siblings were compared — siblings share genetics and home environment, so a vanishing link strongly suggests confounding factors (maternal fever, pain, inflammation, migraines) rather than the medicine itself.
• Untreated high fever in pregnancy carries its own risks — so doctors caution that scaring women away from one of the few widely used pain/fever options in pregnancy can do real harm.

The bottom line from the experts: a possible association flagged on a label is not the same as a proven cause. Major medical bodies say the current evidence does not show that acetaminophen causes autism.

Why misinformation wins on social media

The Rutgers findings are a textbook case of how health misinformation travels:

• The algorithm rewards emotion. Conspiracy-framed, alarming videos get watched and shared far more than calm, evidence-based explanations.
• Influencers outnumber experts. Nearly three in four misinformation videos came from influencers — while, as the companion study showed, health institutions largely stayed silent on the topic.
• Fear targets the vulnerable. Expectant mothers making real decisions about pain and fever are exactly the audience most motivated to click — and most harmed by wrong advice.
• Debate keeps it alive. This week, viral reels on both sides — podcast clips claiming a link and doctors' rebuttals — are still drawing thousands of comments.

How to judge a health video before you act on it

Use this 5-point checklist before a reel changes your health decisions:

• Who is speaking? A named doctor, pharmacist, or researcher — or an influencer with no medical training?
• Do they show real research? Look for links to published studies, not personal anecdotes or "a study I read once".
• Do major medical bodies agree? One viral claim against the position of bodies like ACOG or the AAP is a red flag.
• Is it using fear or conspiracy framing? "They don't want you to know" and urgent scare tactics are hallmarks of misinformation.
• Does it tell you to stop a medicine? Never stop, start, or change a prescribed medicine because of a video — talk to your own doctor first.

How home nursing helps expectant and new mothers

Pregnancy and the weeks after birth are exactly when reliable guidance matters most. This is where professional home nursing earns its keep:

• Prenatal monitoring at home — blood pressure, weight, and symptom checks between clinic visits
• Fever and medication guidance — following your doctor's advice, with a trained nurse watching the situation
• Knowing when to call the doctor — warning signs in pregnancy and newborns, recognized early
• Newborn and postnatal care — feeding support, umbilical care, and recovery monitoring at home
• A trusted source at your doorstep — answers from a certified professional instead of a comment section