Acetaminophen causes neurodevelopmental injury in susceptible babies and children: no valid rationale for controversy The headline Tylenol causes autism has sparked concern. But the science tells a more nuanced story. Some observational studies have found that when pregnant women used more acetaminophen, their Mark Hyman, An Open Label Case Series of Glutathione Use for Symptomatic Management in Children with Autism Spectrum Disorder Acetaminophen Use During Pregnancy and Autism Risk