Can prenatal use of Tylenol increase the risk of autism in children?

Checked on September 23, 2025
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1. Summary of the results

The question of whether prenatal use of Tylenol (acetaminophen) can increase the risk of autism in children has been analyzed through various studies and reports. Some analyses suggest a possible link between acetaminophen use during pregnancy and an increased risk of neurological conditions such as autism and ADHD in children [1] [2]. For instance, the FDA has initiated a process for a label change for acetaminophen to reflect evidence suggesting that its use by pregnant women may be associated with an increased risk of neurological conditions [1]. Additionally, a study by researchers at the Icahn School of Medicine at Mount Sinai found that prenatal exposure to acetaminophen may increase the risk of neurodevelopmental disorders, including autism spectrum disorder and ADHD, in children [2]. However, other analyses contradict this claim, arguing that the evidence is not robust and that confounding factors may explain the association [3] [4] [5]. According to Dr. Zeyan Liew, there is no definitive evidence to suggest that paracetamol use in mothers is a cause of autism, and any associations found are very small [4].

2. Missing context/alternative viewpoints

A key missing context in the original statement is the quality and consistency of the evidence. While some studies suggest a link between acetaminophen use during pregnancy and an increased risk of autism, many researchers argue that the evidence is not robust and that confounding factors may explain the association [3] [4]. Furthermore, the dosage and duration of acetaminophen use are important factors to consider, as higher-quality studies show stronger links between prenatal acetaminophen exposure and neurodevelopmental disorders [2] [6]. Additionally, alternative explanations for the association between acetaminophen use and autism, such as fever or infection during pregnancy, should be considered [5]. The benefits of considering these alternative viewpoints include a more nuanced understanding of the relationship between acetaminophen use and autism, which can inform pregnant women and healthcare providers about the potential risks and benefits of acetaminophen use during pregnancy.

3. Potential misinformation/bias in the original statement

The original statement may be misleading or biased because it does not account for the uncertainty and controversy surrounding the link between acetaminophen use and autism [3] [4]. By presenting a simplistic and absolute claim, the statement may alarm or misinform pregnant women and the general public, which could have negative consequences for public health and healthcare decision-making. The FDA and other regulatory agencies, as well as pharmaceutical companies and healthcare providers, may benefit from a more nuanced and accurate representation of the evidence, as it can inform policy and practice decisions related to acetaminophen use during pregnancy [1]. On the other hand, advocacy groups and researchers may benefit from a more simplistic and absolute representation of the evidence, as it can raise awareness and mobilize action around the potential risks of acetaminophen use during pregnancy [2].

Want to dive deeper?
What is the current scientific consensus on prenatal Tylenol use and autism risk?
How does acetaminophen affect fetal brain development during pregnancy?
Are there alternative pain relievers recommended for pregnant women?
What are the findings of the 2020 study on prenatal Tylenol use and autism risk?
Can prenatal exposure to acetaminophen increase the risk of other neurodevelopmental disorders?