Autism and Tylenol: Exploring the Evidence on Acetaminophen in Pregnancy NAM Myth 4: Oral supplements are just as effective as IV drips., Lets set the record straight., While oral glutathione supplements may seem convenient, they often lose potency during digestion, meaning 6 health benefits of glutathione The headline Tylenol causes autism has sparked concern. But the science tells a more nuanced story. Some observational studies have found that when pregnant women used more acetaminophen, their Mark Hyman,