Tylenol and autism (prenatal acetaminophen)

MDL 3043 (federal claims dismissed in 2023), S.D.N.Y., Judge Denise L. Cote

Filings

Coordinated

Bellwethers

Settlement

Wind-down

Cases are centralized before one judge for pretrial work.

Stage: Coordinated (MDL or JCCP)
Campaign window: Closing
Coordination: MDL 3043 (federal claims dismissed in 2023)
Court: S.D.N.Y.
Judge: Denise L. Cote
Category: Drugs

Updated Oct 26, 2026. Maintained by Jacob Malherbe.

New federal cases per week

Not tracked for this tort, because its cases are not centralized in one federal court.

Jacob Score: 38

Litigation strength from 0 to 100. Last reviewed Jul 20, 2026. How it's set

Science
Momentum
Campaign
Timeline
Verdicts

What changed

Oct 26, 2026
New study
Prenatal exposure to paracetamol and the risk of autism and attention-deficit/hyperactivity disorder: An umbrella review and meta-meta-analysis
Developmental medicine and child neurology
PubMed (Dev Med Child Neurol)
Oct 20, 2026
News
Suits Linking Tylenol To Autism, $400M Sandoz Deal And More
Law360
Oct 20, 2026
New study
Maternal Factors Modifying the Link Between Genetic Risk for Autism and Developmental Milestones
American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics. D'Alesio L et al.
PubMed (Am J Med Genet B Neuropsychiatr Genet)
Oct 19, 2026
New study
Acetaminophen Use in Pregnancy: Evidence, Controversies, and Clinical Counseling
American journal of perinatology. Higgs AJ et al.
PubMed (Am J Perinatol)
Oct 16, 2026
News
Kenvue loses bid for rehearing after Tylenol autism lawsuits revived
Reuters
Oct 16, 2026
News
2nd Circ. Denies Rehearing In Tylenol Autism Suits
Law360
Jul 13, 2026
Case event
The Second Circuit revived more than 500 lawsuits against Tylenol maker Kenvue, ruling the trial judge improperly excluded testimony from three plaintiffs' experts. The court said it was not deciding whether acetaminophen causes autism or ADHD. Kenvue says independent science shows no proven link.
molawyersmedia.com
Nov 18, 2025
Case event
A three-judge Second Circuit panel heard oral argument on the appeals.
napolilaw.com
Dec 18, 2023
Case event
Judge Cote excluded all of the plaintiffs' general causation experts, which effectively ended the federal cases.
tavrn.ai
Oct 5, 2022
Case event
The JPML combined federal lawsuits alleging prenatal acetaminophen (Tylenol) use caused autism or ADHD into MDL No. 3043 in the Southern District of New York before Judge Denise Cote.
tavrn.ai

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