Autism spectrum disorder cases have risen over the past two decades. Today, the condition affects around 3.2% of children in the United States, according to the Centers for Disease Control and Prevention .

On September 22, 2025, the Department of Health and Human Services (HHS) announced that the rise in childhood autism is associated with the use of acetaminophen (aka paracetamol) by pregnant women . As a result, acetaminophen makers will be required to add a consumer safety label to their products. Food and Drug Administration (FDA) Commissioner Dr. Marty Makary noted that the agency "is taking action to make parents and doctors aware of a considerable body of evidence about potential risks associated with acetaminophen."

Yet one acetaminophen maker — Kenvue, the company behind

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