Pregnant women can breathe a sigh of relief: A recent study finds that taking paracetamol during pregnancy does not increase the risk of autism or ADHD in children. This major study, published in The Lancet Obstetrics, Gynaecology & Women’s Health, analyzed decades of global data and concluded that paracetamol, when used as directed, remains a safe option for managing pain and fever during pregnancy.
The research, led by an international team of experts, focused on sibling comparison studies, which are considered the most rigorous method to date. By comparing siblings born to the same mother, where one pregnancy involved paracetamol use and another did not, the study accounted for shared genetics, family environment, and parental factors that can skew results. The findings showed no increased risk of autism, ADHD, or intellectual disability in children whose mothers took paracetamol during pregnancy.
This directly addresses concerns sparked last year by high-profile claims in the US suggesting a possible link between paracetamol and neurodevelopmental disorders. However, earlier studies had reported small associations, often based on weaker study designs that did not fully account for factors like maternal illness, fever, family history, or genetics, all of which are known to influence child development. By focusing on sibling comparisons and excluding lower-quality evidence, the researchers concluded that earlier links were likely due to bias or unmeasured confounding, rather than a true causal effect of paracetamol.
Paracetamol is the most commonly recommended painkiller during pregnancy in the UK and is widely used to treat headaches, pain, and fever. It is generally considered safer than alternatives such as ibuprofen or opioid painkillers. Doctors also stress that untreated fever or severe pain during pregnancy can itself pose risks, including preterm birth and other complications. Avoiding paracetamol unnecessarily could therefore do more harm than good.
The findings support existing advice from the NHS, the Medicines and Healthcare products Regulatory Agency, and the Royal College of Obstetricians and Gynaecologists, all of which continue to recommend paracetamol as the first-line option in pregnancy when used at the lowest effective dose. This study also arrives amid ongoing debate in the US, where claims about Tylenol (the US brand name for paracetamol) have been linked to wider misinformation about autism. Responding to these claims, experts have warned about the real-world impact of spreading fear among expectant parents, emphasizing that painkillers do not cause autism and that large-scale studies have shown no robust, scientific evidence to support such claims.
For pregnant women, the message from this latest research is clear and reassuring. Based on the best available evidence, taking paracetamol as advised during pregnancy is not linked to autism, ADHD, or intellectual disability. Health experts continue to recommend it as a safe and effective option for pain and fever relief. If you are ever unsure about medication in pregnancy, it is always best to speak to your GP or midwife, but this study offers strong reassurance at a time when many mums-to-be have been left feeling anxious and confused.
