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Acetaminophen in Pregnancy: A Population-Level Drug-Utilization Study of Prescription-Based Acetaminophen Use Among
S Pflugfelder1, E B Gram1, P Damkier1,2
1Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.
Abstract:
Acetaminophen is the most used analgetic drug for pain management during pregnancy. A recent academic controversy concerns the safety of acetaminophen during pregnancy related to a potentially increased risk of adverse neurodevelopmental effects. We investigated the population-level trends in prescription-based use of acetaminophen among pregnant women in Denmark between 2001 and 2023. Prescription-based sals of acetaminophen among pregnant women and comparison groups were retrieved from 'eSundhed', a publicly available dataset curated by the Danish Health Authorities. The number of prescription-based drug users per 1000 pregnant women increased slightly from 2001 to 2012 (3.9 to 6.5 per 1000) and 2015 to 2023 (52 to 76 per 1000), interrupted by a drastic increase in 2013/2014. Acetaminophen use among pregnant women (2023: 76 per 1000) was lower than in women in an age-matched comparison group (137 per 1000) and in women 12-3 months prior to pregnancy (124 per 1000). Time trends did not notably differ between age groups or comparison groups. Prescription-based acetaminophen sales among pregnant women increased by 50% from 2015 to 2023. A general shift in the prescription pattern towards a substantial increase in prescription-based exposure was observed following legislation changes in 2013, restricting sales of large packages to prescription.
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