A major public health and legal storm is unfolding after President Donald Trump urged pregnant women to avoid Tylenol, citing mounting scientific evidence linking prenatal acetaminophen use to autism and ADHD. Within hours of his remarks, the U.S. Food and Drug Administration (FDA) announced it will require new warnings on all acetaminophen products — a watershed decision following years of debate and internal concern.

Evidence Long Hidden From the Public

According to documents first reported by the Daily Caller News Foundation and obtained by law firm Keller Postman LLC, internal emails reveal that the makers of Tylenol and federal regulators had quietly acknowledged potential risks for over a decade.

In one 2008 email, Rachel Weinstein, U.S. Director of Epidemiology for Johnson & Johnson’s Janssen division, wrote after reviewing studies, “The weight of evidence is starting to feel heavy to me.” Johnson & Johnson manufactured Tylenol until 2023, when it spun off the brand to Kenvue.

A 2018 confidential J&J presentation admitted there was a “somewhat consistent” association between prenatal Tylenol exposure and neurodevelopmental disorders, though company scientists debated whether to invest in further research — fearing it might validate the concerns.

Meanwhile, FDA scientists conducted meta-analyses in 2019 and 2022, identifying links between acetaminophen and both urogenital and neurodevelopmental risks. Yet, public action on warnings lagged until the recent decision.

Despite this internal knowledge, Kenvue has publicly maintained there is no proven causal link between Tylenol and autism, even as internal records cited by journalist Emily Kopp show the company monitored consumer concerns and social media discussions through 2023 and created an internal review dubbed “Project Cocoon.”

What This Means for Tylenol Autism Cases

These disclosures have triggered thousands of lawsuits claiming failure to warn and corporate negligence. Legal experts expect individual Tylenol autism cases could settle from $50,000 to over $500,000 per family, making this one of the most significant pharmaceutical liability waves in recent memory.

“For families blindsided by these revelations, this is a moment of shock and a demand for accountability,” said Jacob Malherbe, Founder of Mass Tort Ad Agency.

Helping Law Firms Respond Ethically and Effectively

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Act Now — The Window Is Open

The FDA’s new label requirement has ignited national attention and awareness. Firms that move early can better position themselves to help families seeking justice and secure stronger case acquisition before competition intensifies.

If your firm is exploring Tylenol autism cases, now is the time to act.

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