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. Myth busting, Acetaminophen version. "Avoid Acetaminophen (Tylenol) because it causes glutathione depletion". Truth?? As a pediatrician and ER doctor and as moms we're often asked about this. And we understand why: Do you have questions about the use of Tylenol during pregnancy? We spoke with Dr. Janine Hutson, maternal fetal medicine specialist and OBGYN about what the latest research says, what to consider and What Is Acetaminophen? Definition, Uses, Side Effects, and Risks Olympic Behavioral Health