They told us Tylenol is safe. Pediatricians recommend them daily. But what if we've been missing the full story? Research shows that frequent use of acetaminophen (Tylenol) in babies and children An Open Label Case Series of Glutathione Use for Symptomatic Management in Children with Autism Spectrum Disorder Acetaminophen Toxicity: How Genetic Susceptibility Combines with Environmental Factors Tylenol, Autism, and Leucovorin: What Parents Need to Know. The recent discussion about acetaminophen (Tylenol) and autism has raised understandable concerns, but decades of high quality research is clear acetaminophen use during pregnancy does not cause autism. While the causes of