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Appeals Court Weighs Revival of Tylenol–Autism Cases as Texas Judge Rejects Paxton’s Requests

Researchers and health authorities have not established that prenatal acetaminophen use causes autism.

Overview

  • The 2nd U.S. Circuit Court of Appeals is hearing arguments on whether to reinstate more than 500 lawsuits that a federal judge dismissed in 2024 for flawed expert testimony.
  • Plaintiffs pointed to a September White House press conference where President Donald Trump and top health officials publicly linked Tylenol use in pregnancy to autism.
  • In a separate Texas case, State District Judge LeAnn Rafferty denied Attorney General Ken Paxton’s bid to temporarily bar Kenvue from marketing Tylenol to pregnant women.
  • Judge Rafferty also declined Paxton’s request to block Kenvue’s planned $398 million shareholder dividend due later this month.
  • Kenvue and Johnson & Johnson dispute any causal link and cite the weight of science, while Kimberly-Clark’s roughly $40 billion deal to buy Kenvue is slated to proceed under terms that do not permit backing out over these allegations.