Tylenol Maker Falls as US Court Weighs Reviving Autism Lawsuits

Shares of Kenvue Inc. fell Monday as an appeals court weighed whether to revive lawsuits claiming the company concealed the risks of autism for children if mothers take Tylenol during pregnancy.

A three-judge panel raised the possibility Monday that a lower-court judge who blocked 500 cases from going to trial erred in rejecting the scientific evidence behind the autism allegations and the analysis by experts supporting it.

“I agree the district court did some things incorrectly” in reviewing the validity of the evidence linking prenatal Tylenol use and autism, US Circuit Judge Guido Calabresi said during an hour-long hearing ...