Options
Rename Topic
Delete Topic
Are you sure you want to delete this topic?
Shared by another Zenith User
What made this response need improvement?
does tylenol cause autism
Penny found 20 sources
with relevant information, and the following are cited
8 peer-reviewed research articles
1 professionally-backed source
5 articles from healthcare institutions
1 general health and web source
Overview
Current evidence does not support a direct link between Tylenol (acetaminophen) use during pregnancy and an increased risk of autism in children. While some earlier studies suggested a possible association, more recent, large, and well-controlled research has found no causal relationship.
Key Points
What Recent Research Shows
-
Large Population Studies: The largest study to date, involving over 2.4 million children and using sibling comparisons, found no evidence that acetaminophen use during pregnancy causes autism, attention-deficit/hyperactivity disorder (ADHD), or intellectual disability. Any small increased risk seen in earlier studies disappeared when researchers accounted for genetic and family factors by comparing siblings.
Acetaminophen Use During Pregnancy and Children's Risk of Autism, ADHD, and Intellectual Disability - PubMedAcetaminophen use during pregnancy was not associated with children's risk of autism, ADHD, or intellectual disability in sibling control analysis. This suggests that associations observed in other models may have been attributable to familial confounding.Read full articleSource: PubMedNo link between acetaminophen use during pregnancy and children's autism riskAdvertised as a pain reliever and ... Excedrin, and Mucinex, among others. Following each child up to 26 years after birth, the team found a small increased risk of autism, ADHD and intellectual disability in the overall population – as seen in similar previous studies that ...Read full articleSource: Drexel UniversityResearch shows no causal link between Tylenol and autism | Autism SpeaksA new study shows that there is no link between Tylenol and autism and that the previously reported connection is likely due to other underlying factors.Read full articleSource: Autism SpeaksCan You Take Acetaminophen While Pregnant?... Let’s take a quick look back at the recent history of Tylenol and autism. A 2018 meta-analysis of seven studies involving 132,738 pairs of mothers and children showed a 20% higher risk of autism and a 30% higher risk of ADHD for children who had prolonged exposure to acetaminophen during ...Read full articleSource: Cleveland ClinicAcetaminophen use during pregnancy was not linked to autism, ADHD, or intellectual disability in offspring | Annals of Internal MedicineSource Citation Ahlqvist VH, Sjöqvist H, Dalman C, et al. Acetaminophen use during pregnancy and children's riskofautism, ADHD, and intellectual disability. JAMA. 2024;331:1205-1214. 38592388Read full articleSource: acpjournals.orgStudy reveals no causal link between neurodevelopmental disorders and acetaminophen exposure before birth | National Institutes of Health (NIH)Acetaminophen exposure during pregnancy is not linked to the risk of developing autism, ADHD, or intellectual disability, according to a new study of data from more than 2 million children in Sweden.
-
Sibling-Controlled Analyses: These studies are considered more reliable because they control for shared genetics and environment. They suggest that previous findings of increased risk were likely due to other factors, not acetaminophen itself.
Research shows no causal link between Tylenol and autism | Autism SpeaksA new study shows that there is no link between Tylenol and autism and that the previously reported connection is likely due to other underlying factors.Read full articleSource: Autism SpeaksStudy reveals no causal link between neurodevelopmental disorders and acetaminophen exposure before birth | National Institutes of Health (NIH)Acetaminophen exposure during pregnancy is not linked to the risk of developing autism, ADHD, or intellectual disability, according to a new study of data from more than 2 million children in Sweden.
-
Professional Guidelines: Major organizations, including the American College of Obstetricians and Gynecologists (ACOG), continue to state that acetaminophen is considered safe for use during pregnancy when used as directed.
Acetaminophen risk in pregnancy: What patients need to know | Your Pregnancy Matters | UT Southwestern Medical CenterIt has generally been considered safe to use during pregnancy. But in September 2021, a consensus statement urging caution on the use of acetaminophen during pregnancy was published in Nature Reviews Endocrinology.
Why There Was Confusion
-
Older and Smaller Studies: Some earlier research and reviews found a slight association between acetaminophen use and neurodevelopmental disorders, including autism. However, these studies could not fully account for confounding factors—such as genetics, maternal health, or environmental exposures—that might influence both acetaminophen use and autism risk.
Evaluation of the evidence on acetaminophen use and neurodevelopmental disorders using the Navigation Guide methodology | Environmental Health | Full TextNumerous well-designed studies have indicated that pregnant mothers exposed to acetaminophen have children diagnosed with neurodevelopmental disorders (NDDs), including autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD), at higher rates than children of pregnant ...Mount Sinai Study Supports Evidence That Prenatal Acetaminophen Use May Be Linked to Increased Risk of Autism and ADHD | Mount Sinai - New YorkResearchers at the Icahn School of Medicine at Mount Sinai have found that prenatal exposure to acetaminophen may increase the risk of neurodevelopmental disorders, including autism spectrum disorder and attention-deficit/hyperactivity disorder (ADHD), in children.The Dangers of Acetaminophen for Neurodevelopment Outweigh Scant Evidence for Long-Term Benefits - PMCBased on available data that include approximately 20 lines of evidence from studies in laboratory animal models, observations in humans, correlations in time, and pharmacological/toxicological considerations, it has been concluded without ...Read full articleSource: PubMed Central
-
Recent Meta-Analyses: Some systematic reviews have suggested a possible link, especially with frequent or prolonged use, but these findings are not consistent and often do not account for all confounding variables.
Mount Sinai Study Supports Evidence That Prenatal Acetaminophen Use May Be Linked to Increased Risk of Autism and ADHD | Mount Sinai - New YorkResearchers at the Icahn School of Medicine at Mount Sinai have found that prenatal exposure to acetaminophen may increase the risk of neurodevelopmental disorders, including autism spectrum disorder and attention-deficit/hyperactivity disorder (ADHD), in children.The Dangers of Acetaminophen for Neurodevelopment Outweigh Scant Evidence for Long-Term Benefits - PMCBased on available data that include approximately 20 lines of evidence from studies in laboratory animal models, observations in humans, correlations in time, and pharmacological/toxicological considerations, it has been concluded without ...Read full articleSource: PubMed Central
-
Biological Theories: There are hypotheses about how acetaminophen could affect fetal brain development, but these are not proven in humans and remain speculative.
Mount Sinai Study Supports Evidence That Prenatal Acetaminophen Use May Be Linked to Increased Risk of Autism and ADHD | Mount Sinai - New YorkResearchers at the Icahn School of Medicine at Mount Sinai have found that prenatal exposure to acetaminophen may increase the risk of neurodevelopmental disorders, including autism spectrum disorder and attention-deficit/hyperactivity disorder (ADHD), in children.The Dangers of Acetaminophen for Neurodevelopment Outweigh Scant Evidence for Long-Term Benefits - PMCBased on available data that include approximately 20 lines of evidence from studies in laboratory animal models, observations in humans, correlations in time, and pharmacological/toxicological considerations, it has been concluded without ...Read full articleSource: PubMed CentralMaternal use of acetaminophen during pregnancy and neurobehavioral problems in offspring at 3 years: A prospective cohort study - PMCDuring the first trimester, ... fetal development [48]. Additionally, research suggests that acetaminophen use during the third trimester may be associated with poor neurodevelopment and behavioral problems [10, 49, 50], decreased hematopoietic stem cells [51], and fetal ...Read full articleSource: PubMed Central
What About Other Neurodevelopmental Outcomes?
-
ADHD and Attention Problems: Some studies have found associations between prenatal acetaminophen exposure and attention problems or ADHD, but these findings are also inconsistent and may be explained by other factors.
The relationship of prenatal acetaminophen exposure and attention-related behavior in early childhood - ScienceDirectAcetaminophen is currently the only analgesic considered safe for use throughout pregnancy, but recent studies indicate that prenatal exposure to acetaminophen may be related to poorer neurodevelopmental outcomes. Multiple studies have suggested that it may be associated with attention problems, ...Read full articleSource: sciencedirect.comChild ADHD risk linked to mother’s use of acetaminophen - UW Medicine | NewsroomAcetaminophen is widely used during pregnancy, with · 41–70% of pregnant individuals in the United States, Europe and Asia reporting use. Despite acetaminophen’s classification as low risk by regulatory agencies such as the FDA, accumulating evidence suggests a potential link between prenatal acetaminophen exposure and adverse neurodevelopmental outcomes, including ADHD and ADHD autism ...Maternal use of acetaminophen during pregnancy and neurobehavioral problems in offspring at 3 years: A prospective cohort study | PLOS OneWhile acetaminophen is recommended ... between prenatalexposuretoacetaminophen and neurobehavioral problems in children, including attention-deficit hyperactivity disorders [1–3]. Recently, there is a debate in the literature on whether or not clinicians should recommend reduced acetaminophen use during pregnancy [4, 8, 9]. Studies that have examined the association between acetaminophen use during pregnancy and adverse neurobehavioral outcomes among children ...Read full articleSource: PLOSPrenatal Acetaminophen Exposure and its Associated Risk for Attention Deficit Hyperactivity Disorder - PMCSeveral studies reported findings ... occur in prenatalexposuretoacetaminophen alongside exposures at different trimesters. The third trimester has been associated to experience the most implications due to the fetal brain undergoing rapid development.12 In one study, a sibling-controlled cohort study compared the difference in the siblings’ neurodevelopmental outcomeswithexposure ...Read full articleSource: PubMed Central
-
No Direct Causation: The best available evidence, especially from sibling-controlled studies, does not support a direct causal relationship between acetaminophen and autism or other neurodevelopmental disorders.
Acetaminophen Use During Pregnancy and Children's Risk of Autism, ADHD, and Intellectual Disability - PubMedAcetaminophen use during pregnancy was not associated with children's risk of autism, ADHD, or intellectual disability in sibling control analysis. This suggests that associations observed in other models may have been attributable to familial confounding.Read full articleSource: PubMedNo link between acetaminophen use during pregnancy and children's autism riskAdvertised as a pain reliever and ... Excedrin, and Mucinex, among others. Following each child up to 26 years after birth, the team found a small increased risk of autism, ADHD and intellectual disability in the overall population – as seen in similar previous studies that ...Read full articleSource: Drexel UniversityResearch shows no causal link between Tylenol and autism | Autism SpeaksA new study shows that there is no link between Tylenol and autism and that the previously reported connection is likely due to other underlying factors.Read full articleSource: Autism SpeaksCan You Take Acetaminophen While Pregnant?... Let’s take a quick look back at the recent history of Tylenol and autism. A 2018 meta-analysis of seven studies involving 132,738 pairs of mothers and children showed a 20% higher risk of autism and a 30% higher risk of ADHD for children who had prolonged exposure to acetaminophen during ...Read full articleSource: Cleveland ClinicAcetaminophen use during pregnancy was not linked to autism, ADHD, or intellectual disability in offspring | Annals of Internal MedicineSource Citation Ahlqvist VH, Sjöqvist H, Dalman C, et al. Acetaminophen use during pregnancy and children's riskofautism, ADHD, and intellectual disability. JAMA. 2024;331:1205-1214. 38592388Read full articleSource: acpjournals.orgStudy reveals no causal link between neurodevelopmental disorders and acetaminophen exposure before birth | National Institutes of Health (NIH)Acetaminophen exposure during pregnancy is not linked to the risk of developing autism, ADHD, or intellectual disability, according to a new study of data from more than 2 million children in Sweden.
Summary
- No Causal Link: The most robust and recent research finds no evidence that Tylenol (acetaminophen) use during pregnancy causes autism in children.
- Safe When Needed: Acetaminophen remains the recommended pain and fever reliever during pregnancy when used at the lowest effective dose for the shortest necessary time.
- Ongoing Research: Scientists continue to study this topic, but current guidelines have not changed based on the latest evidence.
If you have concerns about medication use during pregnancy, you should consider discussing them with your OB/GYN, who can work with you based on your specific medical history.
Providing feedback helps us improve Penny's responses.
Peer-Reviewed Research
Published, peer-reviewed scientific studies from journals or databases.
1
Acetaminophen Use During Pregnancy and Children's Risk of Autism, ADHD, and Intellectual Disability - PubMed
Acetaminophen use during pregnancy was not associated with children's risk of autism, ADHD, or intellectual disability in sibling control analysis. This suggests that associations observed in other models may have been attributable to familial confounding.
Read full article
Source:
PubMed
Acetaminophen use in pregnancy and neurodevelopment: attention function and autism spectrum symptoms | International Journal of Epidemiology | Oxford Academic
Prenatal exposure to acetaminophen may increase autism spectrum symptoms in male children. Maternal use of acetaminophenduringpregnancy may be harmful to attention function and may be associated with a higher risk of hyperactivity/impulsivity symptoms in the offspring.
Read full article
Source:
Oxford Academic
Examining the relationship of acetaminophen use during pregnancy with early language development in children | Pediatric Research
Acetaminophen is the only analgesic considered safe for use throughout pregnancy. Recent studies suggest that use during pregnancy may be associated with poorer neurodevelopmental outcomes in children, but few have examined language development. The Illinois Kids Development Study is a prospective ...
Read full article
Source:
Nature
5
Acetaminophen use during pregnancy was not linked to autism, ADHD, or intellectual disability in offspring | Annals of Internal Medicine
Source Citation Ahlqvist VH, Sjöqvist H, Dalman C, et al. Acetaminophen use during pregnancy and children's riskofautism, ADHD, and intellectual disability. JAMA. 2024;331:1205-1214. 38592388
Read full article
Source:
acpjournals.org
Prenatal and postnatal exposure to acetaminophen in relation to autism spectrum and attention-deficit and hyperactivity symptoms in childhood: Meta-analysis in six European population-based cohorts | European Journal of Epidemiology
Liew Z, Ritz B, Virk J, Olsen J. Maternal use of acetaminophenduringpregnancyandriskofautism spectrum disorders in childhood: A Danish national birth cohort study.
Read full article
Source:
SpringerLink
8
Evaluation of the evidence on acetaminophen use and neurodevelopmental disorders using the Navigation Guide methodology | Environmental Health | Full Text
Numerous well-designed studies have indicated that pregnant mothers exposed to acetaminophen have children diagnosed with neurodevelopmental disorders (NDDs), including autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD), at higher rates than children of pregnant ...
10
The Dangers of Acetaminophen for Neurodevelopment Outweigh Scant Evidence for Long-Term Benefits - PMC
Based on available data that include approximately 20 lines of evidence from studies in laboratory animal models, observations in humans, correlations in time, and pharmacological/toxicological considerations, it has been concluded without ...
Read full article
Source:
PubMed Central
11
Maternal use of acetaminophen during pregnancy and neurobehavioral problems in offspring at 3 years: A prospective cohort study - PMC
During the first trimester, ... fetal development [48]. Additionally, research suggests that acetaminophen use during the third trimester may be associated with poor neurodevelopment and behavioral problems [10, 49, 50], decreased hematopoietic stem cells [51], and fetal ...
Read full article
Source:
PubMed Central
12
The relationship of prenatal acetaminophen exposure and attention-related behavior in early childhood - ScienceDirect
Acetaminophen is currently the only analgesic considered safe for use throughout pregnancy, but recent studies indicate that prenatal exposure to acetaminophen may be related to poorer neurodevelopmental outcomes. Multiple studies have suggested that it may be associated with attention problems, ...
Read full article
Source:
sciencedirect.com
14
Maternal use of acetaminophen during pregnancy and neurobehavioral problems in offspring at 3 years: A prospective cohort study | PLOS One
While acetaminophen is recommended ... between prenatalexposuretoacetaminophen and neurobehavioral problems in children, including attention-deficit hyperactivity disorders [1–3]. Recently, there is a debate in the literature on whether or not clinicians should recommend reduced acetaminophen use during pregnancy [4, 8, 9]. Studies that have examined the association between acetaminophen use during pregnancy and adverse neurobehavioral outcomes among children ...
Read full article
Source:
PLOS
Acetaminophen and pregnancy: short- and long-term consequences for mother and child - PubMed
Counter-intuitively, over-the-counter medication is commonly taken by pregnant women. In this context, acetaminophen (APAP, e.g. Paracetamol, Tylenol) is generally recommended by physicians to treat fever and pain during pregnancy. Thus, APAP ranks at the top of the list of medications taken ...
Read full article
Source:
PubMed
15
Prenatal Acetaminophen Exposure and its Associated Risk for Attention Deficit Hyperactivity Disorder - PMC
Several studies reported findings ... occur in prenatalexposuretoacetaminophen alongside exposures at different trimesters. The third trimester has been associated to experience the most implications due to the fetal brain undergoing rapid development.12 In one study, a sibling-controlled cohort study compared the difference in the siblings’ neurodevelopmental outcomeswithexposure ...
Read full article
Source:
PubMed Central
Postnatal acetaminophen exposure and neurodevelopmental outcomes at 18-21 months corrected gestational age in preterm infants <29 weeks gestation: a retrospective cohort study - PubMed
Background: Studies have reported prenatalacetaminophenexposure is associated with abnormal neurodevelopment. There is limited and conflicting data on neurodevelopmental outcomes following postnatal acetaminophenexposure.
Read full article
Source:
PubMed
Clinical Guidelines & Professional Sources
Clinical recommendations from government, public health organizations, or professional medical provider associations.
6
Study reveals no causal link between neurodevelopmental disorders and acetaminophen exposure before birth | National Institutes of Health (NIH)
Acetaminophen exposure during pregnancy is not linked to the risk of developing autism, ADHD, or intellectual disability, according to a new study of data from more than 2 million children in Sweden.
Medical & Academic Institutions
Information from hospitals, research institutions, or academic medical centers known for clinical expertise and research contributions.
2
No link between acetaminophen use during pregnancy and children's autism risk
Advertised as a pain reliever and ... Excedrin, and Mucinex, among others. Following each child up to 26 years after birth, the team found a small increased risk of autism, ADHD and intellectual disability in the overall population – as seen in similar previous studies that ...
Read full article
Source:
Drexel University
4
Can You Take Acetaminophen While Pregnant?
... Let’s take a quick look back at the recent history of Tylenol and autism. A 2018 meta-analysis of seven studies involving 132,738 pairs of mothers and children showed a 20% higher risk of autism and a 30% higher risk of ADHD for children who had prolonged exposure to acetaminophen during ...
Read full article
Source:
Cleveland Clinic
7
Acetaminophen risk in pregnancy: What patients need to know | Your Pregnancy Matters | UT Southwestern Medical Center
It has generally been considered safe to use during pregnancy. But in September 2021, a consensus statement urging caution on the use of acetaminophen during pregnancy was published in Nature Reviews Endocrinology.
9
Mount Sinai Study Supports Evidence That Prenatal Acetaminophen Use May Be Linked to Increased Risk of Autism and ADHD | Mount Sinai - New York
Researchers at the Icahn School of Medicine at Mount Sinai have found that prenatal exposure to acetaminophen may increase the risk of neurodevelopmental disorders, including autism spectrum disorder and attention-deficit/hyperactivity disorder (ADHD), in children.
13
Child ADHD risk linked to mother’s use of acetaminophen - UW Medicine | Newsroom
Acetaminophen is widely used during pregnancy, with · 41–70% of pregnant individuals in the United States, Europe and Asia reporting use. Despite acetaminophen’s classification as low risk by regulatory agencies such as the FDA, accumulating evidence suggests a potential link between prenatal acetaminophen exposure and adverse neurodevelopmental outcomes, including ADHD and ADHD autism ...
General Health & Web Sources
Publicly available health-related articles from non-peer-reviewed sources. These may reference research or clinical guidelines, but are not primary sources.
3
Research shows no causal link between Tylenol and autism | Autism Speaks
A new study shows that there is no link between Tylenol and autism and that the previously reported connection is likely due to other underlying factors.
Read full article
Source:
Autism Speaks