Researchers report that when mothers use Tylenol (paracetamol/acetaminophen) during pregnancy, their daughters show differences in development of the uterus and ovaries as infants. The findings come from a study discussed by researchers in Denmark, led by Margit Bistrup Fischer of Rigshospitalet in Copenhagen.
The researchers stress that the study does not prove the medication is the cause, and they do not interpret the results as evidence of effects on daughters’ future fertility. Both outlets note that longer-term follow-up would be needed to determine whether any early reproductive-organ differences translate into later outcomes such as age at menopause.
Korea Times also quotes Kenvue, the company behind the Tylenol brand, which says acetaminophen is among the most studied pain relievers in pregnancy and advises pregnant or breastfeeding people to consult a health professional. The company adds that the study has methodological limitations and does not support a causal relationship. Overall coverage aligns on cautious interpretation and the need for additional research.
