FDA rank-and-file scientists repeatedly recommended the agency release information about Tylenol in pregnancy across three scientific reviews conducted in 2016, 2019, 2022 and two memos, one from the FDA's maternal health division in 2016 and one from the FDA's urological health division in 2017.

The scientific literature posits many plausible drivers of autism, the most well-established of which are genetic, and the FDA drug safety experts acknowledged that the research linking the condition to Tylenol is far from ironclad.