Families are filing lawsuits claiming that Tylenol (acetaminophen) use during pregnancy may have increased the risk of autism spectrum disorder (ASD) or ADHD in children. These claims assert that manufacturers and retailers failed to provide sufficient warnings. If you used acetaminophen while pregnant and your child was later diagnosed with autism or ADHD, you may be eligible for compensation.

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Tylenol Autism Lawsuit: Acetaminophen Pregnancy Claims & Eligibility

This guide outlines who may qualify, key scientific evidence, current litigation updates, timelines, and important next steps for families considering a Tylenol autism lawsuit.

Who Qualifies for a Tylenol Autism Lawsuit?

• Mother used acetaminophen (Tylenol/APAP) during pregnancy (any trimester)
• Child later diagnosed with autism spectrum disorder (ASD) and/or ADHD
• Diagnosis and usage details available (medical records, pharmacy logs, or reasonable proof)
• Within applicable state deadlines (statutes of limitation/repose vary)

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Do You Qualify? Quick Checklist

• Prenatal use of acetaminophen (Tylenol/APAP)
• Child diagnosed with ASD and/or ADHD
• Medical documentation available (OB records, pharmacy logs, pediatric diagnoses)
• Evaluation within your state’s filing deadlines

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Scientific Evidence on Tylenol & Autism/ADHD

• Multiple studies and reviews report associations between prenatal acetaminophen exposure and neurodevelopmental outcomes, including ASD and ADHD.
• Some experts urge caution due to potential confounding factors or exposure misclassification. Courts evaluate whether evidence meets federal or state standards.

Key findings:

• Cell/gene research: Lab studies note changes in neurodevelopment pathways after APAP exposure.
• Biomarker studies: Umbilical-cord APAP biomarkers linked with higher odds of ASD/ADHD.
• Systematic reviews: Mount Sinai and other teams report consistent association patterns in observational studies.

Tylenol Autism Litigation Timeline

2023: Federal MDL court excludes several plaintiffs’ experts on causation; defendants move for dismissal.
2024: Summary judgment effectively ends federal MDL; attention shifts to state courts.
2025: Scientific publications and policy commentary continue; state-court activity and appeals proceed.

See monthly Tylenol Autism Lawsuit Updates below.

Tylenol Autism Lawsuit Updates – December 2025

September 29, 2025:
Plaintiffs cite Trump Administration’s acetaminophen warning, urging the Second Circuit to allow expert testimony from Dr. Andrea Baccarelli.

September 26, 2025:
Hearing rescheduled to November 17 to review government’s new stance on acetaminophen pregnancy warnings.

September 25, 2025:
HHS resurfaces 2017 Tylenol tweet cautioning use in pregnancy.

September 22, 2025:
President Trump announces plans to warn against Tylenol use in pregnancy, suggesting a link to autism.

September 10, 2025:
Appeal hearing scheduled for October 6 regarding MDL dismissal of Tylenol autism claims.

September 8, 2025:
FDA leadership indicates an autism report is forthcoming, though acetaminophen may not be the central focus.

September 5, 2025:
Speculation over HHS findings linking Tylenol to autism sparks market reaction.

August 26, 2025:
New Mt. Sinai review finds consistent evidence linking prenatal acetaminophen use to ASD/ADHD.

February 22, 2025:
Biomarker study in Nature Mental Health finds higher ADHD risk in children with prenatal APAP exposure.

January 3, 2025:
Earlier oral arguments held on exclusion of expert testimony in federal MDL.

September 4, 2024:
Federal Tylenol litigation remains uncertain; some state cases active:

• Bartle (Illinois): Dismissal motion pending, hearing set for Sept 30
• Cooksey (Illinois): Motions pending, hearing Oct 30
• Davey (California): Trial set April 11, 2025
• Fennewald (Illinois): Motions pending, hearing Oct 3
• Bellmon (Illinois): Motions under consideration

August 22, 2024:
Federal litigation ends with Judge Cote’s summary judgment, barring appeal.

July 15, 2024:
Judge rejects Dr. Roberta B. Ness’s expert testimony linking prenatal acetaminophen to ADHD.

May 28, 2024:
MDL fate depends on acceptance of new expert opinions.

May 7, 2024:
Defendants given deadline to object to new expert testimony for potential MDL continuation.

March 18, 2024:
New evidence introduced on acetaminophen-ADHD link; motion to exclude due in July.

March 2024:
Judge rules expert testimony linking Tylenol to autism inadmissible.

February 21, 2024:
Approx. 500 Tylenol cases dismissed in federal MDL; appeals expected.

January 18, 2024:
Plaintiffs required to provide reason for cases to continue; affects 501 plaintiffs.

December 7, 2023:
Judge Cote excludes all five plaintiffs’ experts; federal MDL challenged for dismissal by Kenvue.

How the Lawsuit Process Works

1. Free evaluation: Answer questions and provide prenatal usage details.
2. Investigation: Gather OB/pediatric records, pharmacy logs, and expert review.
3. Filing: Complaint filed if eligible (often in state court).
4. Discovery & negotiation: Exchange evidence; pursue settlement where appropriate.
5. Resolution: Settlement, mediation, or trial depending on case facts and venue.

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• Partnered Legal Representation: Our partner firms handle all legal representation; outcomes depend on the unique facts of each case.
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• Transparent & Private: Clear disclosures, strict privacy practices, and no charge for case evaluations.

FAQs

Is there a Tylenol autism settlement?

There is currently no global settlement. State-court cases and ongoing appeals are still proceeding, and their outcomes may influence any potential future negotiations.

Can I move forward with a lawsuit despite the federal MDL being closed?

It’s possible. Some cases can still move forward in state courts, depending on local rules and filing deadlines. Request a free review to explore your options.

Which records are needed to determine if I qualify?

Obstetric and pediatric medical records, pharmacy receipts or medication logs, detailed notes on how often and when acetaminophen was taken, and the child’s official diagnosis documents.

What is the time limit to file a claim?

Filing deadlines differ depending on the state (statutes of limitation or repose). Certain rules may apply specifically to minors. Acting quickly is recommended.

What’s the difference between a mass tort and a class action?

Mass torts allow each person to maintain an individual claim, whereas class actions combine all plaintiffs into a single lawsuit with shared results.

Sources

• claimshotline News: Tylenol Autism MDL coverage
• Preclinical research on APAP and neurodevelopment
• American Journal of Epidemiology: prenatal APAP & neurodevelopmental outcomes
• Johns Hopkins: umbilical-cord APAP biomarkers & ASD/ADHD

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