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Tylenol — Autism & ADHD Litigation
The Tylenol Autism/ADHD Litigation, Explained
A federal appeals court revived the lawsuits on July 13, 2026, returning them to the federal trial court. Here is what is publicly known.
ACTIVE — NO SETTLEMENT. ~550 cases revived July 13, 2026 · new claims still being reviewed.
Marin & Murphy is not licensed in California; details below.
Stefanie A. Murphy & Matthew T. Marin
Partners
Super Lawyers® honorees · members of the American Association for Justice · concentrating in personal injury and mass-tort litigation.
No court has found that Tylenol causes autism or ADHD, and no settlement has been reached. The question now before the courts is whether the science gets heard. Whether any individual has a claim depends on their medical records and the law of their state. The information below covers the litigation itself.
Litigation status — updated July 24, 2026: On July 13, 2026, the U.S. Court of Appeals for the Second Circuit reinstated three of the plaintiffs’ five expert witnesses and revived roughly 550 acetaminophen autism/ADHD cases, returning them to the federal trial court in New York (Rutledge v. Walgreen Co., 2026 LX 395794 (2d Cir. July 13, 2026)). Kenvue, Tylenol’s maker, said on July 13 that it is “exploring all options regarding this decision” and “will continue to defend these cases,” and, as news reports indicated, the defendants went on to seek rehearing. On July 17, 2026, the Second Circuit vacated the district court’s judgments and remanded the cases for further proceedings. On September 10, 2026, Johnson & Johnson Consumer filed a petition asking the panel or the full Second Circuit to rehear that decision (Nos. 24-916, 24-1121, 24-2360, 24-2594). That petition is pending and the court has not ruled on it. The appeals court decided only which experts may testify — no court has decided whether acetaminophen causes autism or ADHD, and there is no settlement.
Case Update — July 13, 2026: The U.S. Second Circuit Court of Appeals revived roughly 550 Tylenol (acetaminophen) autism and ADHD lawsuits, ruling the trial court wrongly excluded the plaintiffs’ scientific experts and that the claims are not blocked by federal law. The court did not decide whether Tylenol causes autism or ADHD, and no settlement has been reached. If you took Tylenol during pregnancy in California and your child was later diagnosed with autism or ADHD, you may be able to file a claim. Get a free case review here.
California families can pursue Tylenol autism and ADHD claims by filing individual lawsuits in the federal litigation — there is no separate California class action to join. Eligibility generally turns on documented prenatal acetaminophen use and a qualifying diagnosis, and filing deadlines depend on your circumstances, so timing should be confirmed with an attorney promptly. No court has found that Tylenol causes autism or ADHD.
Marin & Murphy Law Firm is licensed in Massachusetts, Rhode Island, Connecticut, and South Carolina. We review potential Tylenol autism and ADHD claims for families nationwide and, where a claim moves forward in another state, work with or refer families to attorneys licensed in that jurisdiction. This page is attorney advertising and general information only — it is not legal advice and does not create an attorney-client relationship.
Key Takeaways
- The federal MDL is the active path for California families. The July 13, 2026 appeals ruling returned roughly 550 cases to the trial court, and new claims continue to be reviewed.
- California state-court results have been mixed. A California state case, Davey v. Kenvue Brands LLC, ended in summary judgment for the defendants in May 2025 — one reason most families file federally.
- There is no settlement. Any dollar figures you see anywhere are projections only, and no outcome is guaranteed.
- Evidence matters most. Records showing acetaminophen use during pregnancy plus a formal autism or ADHD diagnosis are the core of any claim.
- A case review is free. These cases are handled on contingency, together with counsel licensed in the applicable jurisdiction — no fee unless there is a recovery. The firm advances court costs and litigation expenses, and those expenses are repaid from the recovery. You are not responsible for court costs or litigation expenses if there is no recovery, unless a court directs otherwise. The attorney’s fee is a percentage of the gross recovery, calculated before expenses are deducted.
Related Tylenol lawsuit coverage: Tylenol autism lawsuit — full 2026 guide · Tylenol lawsuit update: the July 2026 ruling · Tylenol autism lawsuit sign-up
What the July 2026 Ruling Means for California Families
The Second Circuit’s decision restored the cases that had been dismissed in August 2024, holding that the plaintiffs’ scientific experts should not have been excluded wholesale and that federal law does not preempt the failure-to-warn claims. The appeals court was careful about what it did not decide: it did not rule that Tylenol causes autism or ADHD, and it did not order any compensation. The litigation now returns to the trial court in New York for further proceedings. California families with pending cases are part of that revival, and families who have not yet filed can still have their eligibility reviewed. For the full plain-English breakdown, see our Tylenol lawsuit update: the July 2026 ruling.
How California Families Join the Litigation
These cases are consolidated in a federal multidistrict litigation (MDL No. 3043) in the Southern District of New York. Unlike a class action, every family files its own individual lawsuit, keeps its own facts, and — if compensation is ever paid — receives an amount tied to its own case rather than a share of a common pool. We explain the difference in our Tylenol class action lawsuit (MDL) explainer. You do not need to live near New York, appear in a New York courtroom, or pay anything up front to file; the practical first step is a free case review, described step-by-step on our Tylenol autism lawsuit sign-up page.
California State Courts: The Honest Picture
Some Tylenol autism claims have also been filed in California state courts, and the results there have been mixed. In Davey v. Kenvue Brands LLC and Safeway Inc., in the Alameda County Superior Court, the judge granted summary judgment for the defendants in May 2025, finding that the scientific evidence available at the time of the plaintiff’s pregnancy did not establish a clear link between prenatal acetaminophen exposure and autism. We tell you this because you deserve the honest picture: state-court outcomes have gone both directions procedurally, plaintiffs have not won a verdict anywhere, and the revived federal MDL is where the litigation’s center of gravity now sits. That is where the Tylenol litigation team, working with appropriately licensed counsel, helps families pursue claims.
Who Qualifies for a Tylenol Lawsuit in California?
Eligibility is evaluated case by case, but California families are generally in the strongest position when three things are true:
- Documented use. Acetaminophen (Tylenol or a store brand) was used during the pregnancy, and that use can be supported — for example through prenatal records, pharmacy or purchase history, or physician notes.
- A qualifying diagnosis. The child has a formal diagnosis of autism spectrum disorder or ADHD from a qualified provider.
- Timing. Filing deadlines depend on your circumstances and on state law, and they can be strict once they run. Special rules sometimes extend time when the injured person is a minor. An attorney licensed in your state can confirm your specific dates — the safest move is to have them reviewed promptly rather than assume you are early or late.
California courts apply their own standards when evaluating expert scientific testimony in state cases, and the federal courts apply the federal standard addressed in the July 2026 ruling. None of those standards has produced a finding that Tylenol causes autism or ADHD — which is exactly why every claim still turns on its individual evidence.
The Science, In Both Directions
Peer-reviewed research has reported associations between prenatal acetaminophen exposure and neurodevelopmental outcomes — including an August 2025 Mount Sinai review of dozens of studies, a 2025 Harvard analysis examining dose and timing, and a 2019 Johns Hopkins cord-blood study published in JAMA Psychiatry. Other rigorous work points the other way: a large 2024 Swedish sibling-control study published in JAMA found no causal link. The July 2026 ruling means juries may eventually hear the plaintiffs’ experts, but no court has found that Tylenol causes autism or ADHD. Our full 2026 guide covers the studies on both sides.
Projected Compensation for California Claims
There is no Tylenol autism settlement, so no real payout figures exist. Third-party legal commentators have projected individual amounts of roughly $50,000 to $500,000+ depending on diagnosis severity, the strength of the documentation, and care costs. Many qualifying cases may resolve for far less, and no amount can be promised. For the detailed, honest breakdown of how those projections are built, see Tylenol lawsuit payout per person and Tylenol autism lawsuit settlement amounts.
Frequently Asked Questions
How do I file a Tylenol lawsuit in California?
You file an individual claim, almost always into the federal MDL rather than state court. The process starts with a free case review, then gathering prenatal and diagnosis records, then filing. Our sign-up guide walks through all five steps.
Is there a California Tylenol class action?
No. The litigation is a federal MDL made up of individual lawsuits, which is different from a class action — each family’s case is valued on its own facts. Details in our MDL vs. class action explainer.
What happened in the California Davey case?
In May 2025, an Alameda County judge granted summary judgment for the defendants — Kenvue Brands LLC and Safeway — finding the science available during the plaintiff’s pregnancy did not establish a clear link. It was a defense win in state court, and it is part of why most families pursue the federal route.
Is there a deadline or age limit for California families?
Deadlines depend on your circumstances and on your state’s law, and rules for minors can extend time in some situations — but deadlines are unforgiving once they pass. An attorney licensed in your state can confirm your specific dates; the review is free.
How much could a California Tylenol case be worth?
No settlement exists, so any figure is a projection. Commentators have suggested ranges of roughly $50,000 to $500,000+ based on severity and evidence. Many qualifying cases may resolve for far less, and no amount can be promised.
Does Tylenol cause autism or ADHD?
That has not been established. Studies have reported associations in both directions, and no court has found that Tylenol causes autism or ADHD. The July 2026 ruling allows the plaintiffs’ experts to be heard — it did not decide the science.
Talk to the Tylenol Litigation Team About Your Eligibility
If you used Tylenol or generic acetaminophen during a pregnancy in California and your child was diagnosed with autism spectrum disorder or ADHD, the Tylenol litigation team will review your situation for free and, if you qualify, work with attorneys licensed in the appropriate jurisdiction to file your claim in the federal MDL — on contingency, so you owe no attorney’s fee unless there is a recovery. Request your free case review here or call 888-348-2735. Marin & Murphy is licensed in Massachusetts, Rhode Island, Connecticut, and South Carolina, and works with counsel licensed in other states. Related state resources: Massachusetts Tylenol lawsuit · Guía en español: demanda de Tylenol por autismo y TDAH.
Tylenol (acetaminophen) autism and ADHD claims are handled together with co-counsel, who carry principal responsibility for these matters; Marin & Murphy maintains joint responsibility. Whether a claim is accepted is determined after review, and no attorney-client relationship is created until a written engagement agreement is signed.
Where we practice
Marin & Murphy Law Firm attorneys are licensed in Rhode Island, Connecticut, Massachusetts, and South Carolina. We are not licensed in California. The firm does not accept California legal matters; inquiries from California residents are referred to attorneys licensed in California. This page is attorney advertising and is provided for general information; it is not legal advice, and reading it does not create an attorney–client relationship.