“In understanding the current debate, it’s important to note the language used in research. Some studies that analyzed medical records and interviewed mothers about their medication use during pregnancy found that taking Tylenol was “associated" or "correlated" with an increased risk of having children with autism or ADHD. An association This means the trends show a similar pattern, not that one causes the other (also known as a causal relationship). Meanwhile, many larger, more thorough studies have not found an association.” -(Columbia Doctors, October 1, 2025 )
There have been many claims over the last couple months that ingesting tylenol while pregnant can lead to issues with the offspring. Many of these claims have focused on how acetaminophen, a chemical commonly found in tylenol, is linked to neurological issues in developing children. However these claims are false, or at least not proven. While reading the article linked to the original claim its hard to find a solid conclusion, saying that there is some link between children's behavior and acetaminophen, but that there are other possibilities of what the chemical is actually linked to. It offers the idea that the chemical is actually linked to prenatal stress, which in turn causes some of these neurological differences. Posted September 22, 2025, the FDA says, “It is important to note that while an association between acetaminophen and neurological conditions has been described in many studies, a causal relationship has not been established and there are contrary studies in the scientific literature. It is also noted that acetaminophen is the only over-the-counter drug approved for use to treat fevers during pregnancy, and high fevers in pregnant women can pose a risk to their children.” studies are being done trying to prove and disprove the link between the chemical and children developing neurological effects. Though many studies have been done there is no solid link between the two and there is much more research to be done, to truly know the impacts of tylenol on a developing child.
https://www.fda.gov/news-events/press-announcements/fda-responds-evidence-possible-association-between-autism-and-acetaminophen-use-during-pregnancy
https://pmc.ncbi.nlm.nih.gov/articles/PMC9518858/
https://www.columbiadoctors.org/news/what-science-says-about-tylenol-and-autism