“Acetaminophen is one of the most commonly used drugs during pregnancy globally. Recent studies have reported associations between prenatal exposure to acetaminophen and neurobehavioral problems in children, including attention-deficit hyperactivity disorders. Little research has investigated these associations in preschool-age children or the potential confounding effects of prenatal stress.  Acetaminophen use during pregnant may also disrupt the maternal and fetal gut microbiota leading to neurodevelopmental problems [18, 19]. Another possible mechanism of the association between prenatal acetaminophen use and neurobehavioral problems in childhood is prenatal stress.”

National Library of Medicine (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9518858/)