Tylenol Maker Said in Internal Emails Evidence of Link to Autism ‘Starting to Feel Heavy’

The emails came to light in litigation against Johnson & Johnson.

Tylenol lines the shelves of a store in Brandon, Miss.., on Sept. 24, 2025. John Fredricks/The Epoch Times

The manufacturer of Tylenol was keeping tabs on research into the drug and neurodevelopmental issues such as autism, and concluded in 2018 that evidence of a link between them was becoming significant, according to newly disclosed documents.

In a Feb. 8, 2018, email obtained by The Epoch Times, Rachel Weinstein, director of epidemiology at Johnson & Johnson subsidiary Janssen, wrote that “the weight of evidence is starting to feel heavy to me.”