Fact Check: Can Tylenol Cause Autism? Tylenol can lower the body's key antioxidant, glutathione, though this isn't seen on routine labs. But mechanistic data clinical proof, so we still need good trials. The Tylenolautism link isn't clear. Tylenol and autism: What parents deserve to know I'm not suggesting that there's a definitive link between Tylenol and autism, but it 100% depletes your body of glutathione, and enough studies have shown that it should only be taken when Pediatric doctor discusses 20 year awareness of Tylenol's role in autism risk factors 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