It's not only about Tylenol and pregnant women should stop taking any pain relievers which contain acetaminophen as a main ingredient. There is a credible study that linked acetaminophen to autism and ADHD.
Our analysis demonstrated evidence consistent with an association between exposure to acetaminophen during pregnancy and offspring with NDDs, including ASD and ADHD, though observational limitations preclude definitive causation. This analysis, using the Navigation Guide methodology, synthesizes evidence from several population studies and supports an association between prenatal acetaminophen exposure and increased NDD incidence, including ADHD, ASD, and other NDDs. While population-level trends in NDD rates have risen, potentially due to several factors including improved diagnostics and external exposures, further research is needed to confirm these associations and determine causality and mechanisms.
A causal relationship is plausible because of the consistency of the results and appropriate control for bias in the large majority of the epidemiological studies, as well as acetaminophen’s biological effects on the developing fetus in experimental studies. Further, a potential causal relationship is consistent with temporal trends—as acetaminophen has become the recommended pain reliever for pregnant mothers, the rates of ADHD and ASD have increased > 20-fold over the past decades.
While this association warrants caution, untreated maternal fever and pain pose risks such as neural tube defects and preterm birth, necessitating a balanced approach. We recommend judicious acetaminophen use—lowest effective dose, shortest duration—under medical guidance, tailored to individual risk–benefit assessments, rather than a broad limitation.
Background Acetaminophen is the most commonly used over-the-counter pain and fever medication taken during pregnancy, with > 50% of pregnant women using acetaminophen worldwide. Numerous well-designed studies have indicated that pregnant mothers exposed to acetaminophen have children diagnosed...
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