UPDATE: In 2024 Swedish researchers conducted a nationwide cohort study and found that acetaminophen/paracetemol does not cause neurodevelopmental problems. They claim that ADHD, ID and autism were likely caused by the underlying genetic or infectious disease that caused the mother to use paracetemol rather than the paracetemol. They concluded that as far as neurocognitive effects go, acetominophen is safe to use during pregnancy. Visit our coverage here to find out what they concluded.
Acetaminophen (paracetamol) is a medication widely used around the world used to treat fever and pain, but is it safe to use during pregnancy?
To study the risks associated with using paracetamol at mid-stages of pregnancy, researchers from the University of Bristol examined the association between paracetamol intake during pregnancy and the behavioral changes in children. The results of the study were recently published in Paediatric and Perinatal Epidemiology.
The researchers examined fourteen thousand children using the data from Avon Longitudinal Study of Parents and Children (ALSPAC), specifically looking at data between 18-32 weeks of pregnancy, which identified that 43.9 % of women had taken paracetamol often or sometimes during pregnancy.
The researchers found that paracetamol intake during this stage during pregnancy was associated with hyperactivity and attention problems among pre-school children. However, the associations were no longer visible in elementary school children. Furthermore, boys tended to be more likely to be affected.
This research provides additional data suggesting that use of paracetamol during pregnancy may have adverse effects on children. However, there are limitations to the study. The results were based on an exposure study, which means that most of the research was based on the information collected through questionnaires.
Written by Sakina Bano Mendha
References:
Golding, J., Gregory, S., Clark, R., Ellis, G., Iles‐Caven, Y., & Northstone, K. (2019). Associations between paracetamol (acetaminophen) intake between 18 and 32 weeks gestation and neurocognitive outcomes in the child: A longitudinal cohort study. Paediatric and Perinatal Epidemiology. doi: 10.1111/ppe.12582
BristolUni. (n.d.). Childhood behavior linked to taking paracetamol in pregnancy. Retrieved from https://www.eurekalert.org/pub_releases/2019-09/uob-cbl091219.php
Toda, K. (2017). Is acetaminophen safe in pregnancy? Scandinavian Journal of Pain, 17(1), 445–446. doi: 10.1016/j.sjpain.2017.09.007
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