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Tylenol Autism and ADHD Lawsuit
The Tylenol litigation consists of individual product liability lawsuits alleging that prenatal acetaminophen exposure contributed to children developing autism, ADHD, or both. A federal appeals court revived the claims in July 2026, but no settlement has been reached and no payment or recovery is guaranteed.
This is ongoing litigation, not a settlement. No settlement fund exists today and the allegations have not been proven in court.
Key facts
The Tylenol litigation involves individual product liability lawsuits alleging that prenatal exposure to acetaminophen contributed to children developing autism spectrum disorder, attention deficit hyperactivity disorder, or both. The plaintiffs allege that manufacturers and retailers did not adequately warn consumers about the asserted risks. The defendants dispute the allegations, and no court has determined that acetaminophen caused any plaintiff’s condition.
The federal cases were consolidated for coordinated pretrial proceedings in the Southern District of New York. The district court initially excluded the plaintiffs’ general causation experts and entered judgment for the defendants. On July 13, 2026, the United States Court of Appeals for the Second Circuit vacated those judgments and returned the cases to the district court for further proceedings.
The appeals court addressed whether certain expert testimony could be admitted. It did not decide that acetaminophen causes autism or ADHD, determine that the defendants are liable, or award compensation. These are individual lawsuits rather than a certified class action, and there is currently no settlement fund, claim form, settlement deadline, or guaranteed payment.
Who may qualify
This is not a settlement class with established eligibility rules. The litigation involves individual claims alleging that a child developed autism, ADHD, or both following prenatal exposure to acetaminophen. Whether any particular person has a viable claim depends on their circumstances, applicable law, supporting records, and the outcome of the litigation.
The official court page confirms the MDL name, number, court, assigned judge, and allegations. The Second Circuit’s July 2026 opinion confirms that the earlier judgments were vacated and the cases were remanded, while expressly declining to determine the ultimate weight of the evidence. Southern District of New York and Second Circuit opinion
Claim helps you check whether you may qualify to have a claim reviewed. No settlement fund exists today.
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