Tylenol, autism and the difference between finding a link and finding a cause in scientific research Researchers are studying a possible link between acetaminophen (Tylenol) use during pregnancy and higher autism or ADHD risk. It may lower glutathione, an important antioxidant for brain development. Tylenol and Autism: New Info for Pregnancy Acetaminophen Toxicity: How Genetic Susceptibility Combines with Environmental Factors Tylenol and Acetaminophen Autism Spectrum Disorder Lawsuits HINDS INJURY LAW LAS VEGAS Tylenol (acetaminophen) does not cause autism. The FDA, in its statement that there may be an association, confirmed that "a causal relationship has not been established, and studies of millions of children