Acetaminophen and Neurodevelopment Encyclopedia MDPI Functional neurologist discusses Tylenol use after President Trump's big announcement linking Tylenol to autism PDF] Evidence that Increased Acetaminophen use in Genetically Vulnerable Children Appears to be a Major Cause of the Epidemics of Autism, Attention Deficit with Hyperactivity, and Asthma Semantic Scholar Evidence that acetaminophen triggers autism in susceptible individuals has been ignored and mishandled for more than a decade.