After reviewing data from hundreds of thousands of children, scientists found no evidence that taking Tylenol during pregnancy increases the risk of autism, ADHD, or intellectual disability. Credit: Shutterstock Taking acetaminophen, commonly known by the brand name Tylenol, during pregnancy does not raise the risk of autism, attention-deficit hyperactivity disorder (ADHD), or intellectual disability in children. This conclusion comes from the most comprehensive review of the evidence so far,