Is Tylenol safe in pregnancy?
Penny cited the following
7 peer-reviewed research articles
4 professionally-backed sources
7 articles from healthcare institutions
Overview
Tylenol (acetaminophen) is widely used for pain and fever relief during pregnancy and is generally considered safe when used as directed and for short periods. However, recent research has raised questions about possible risks with frequent or long-term use, particularly regarding child neurodevelopment. Most major medical organizations have not changed their recommendations, but they do suggest using the lowest effective dose for the shortest necessary time and consulting with your healthcare provider if you have concerns.
Key Points
What the Evidence Shows
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General Safety: Acetaminophen is the most commonly used pain and fever medication during pregnancy and is generally preferred over alternatives like ibuprofen, which are known to carry risks for the fetus, especially later in pregnancy.
1ArticleAcetaminophen risk in pregnancy: What patients need to know | Your Pregnancy Matters | UT Southwestern Medical CenterSafety guidelines for taking pain medications such as Tylenolduringpregnancy have not changed, despite recent research on acetaminophen risks. UT Southwestern discusses the news topic in the latest Your Pregnancy Matters blog.→
UT Southwestern Medical Center
2ArticleFDA Responds to Evidence of Possible Association Between Autism and Acetaminophen Use During Pregnancy | FDAThe U.S. Food and Drug Administration today initiated the process for a label change for acetaminophen (Tylenol and similar products) to reflect evidence suggesting that the use of acetaminophen by pregnant women may be associated with an increased risk of neurological conditions such as autism and→U.S. Food and Drug Administration
3ArticleIs Tylenol Safe During Pregnancy?There’s been some confusion around the safety of using acetaminophen (commonly known as Tylenol or paracetamol) during pregnancy, with many people afraid to use Tylenol while pregnant in their first trimester.→Cleveland Clinic
4ArticleAcetaminophen Use in Pregnancy and Neurodevelopmental Outcomes | ACOGIn 2015, the FDA reviewed the available literature and determined that the evidence was inconclusive regarding a causal relationship between prenatal acetaminophen and ADHD. 4 In 2017, the Society for Maternal-Fetal Medicine (SMFM) conducted an independent review of large cohort studies 56789 ...→American College of Obstetricians and Gynecologists
5ArticleAcetaminophen in Pregnancy | ACOGAcetaminophen is well studied and proven to be safe for useinpregnancy, and is one of the only medicines available to pregnant women for pain relief and treatment of headaches and fevers. Science does not support claims that acetaminophenuseduringpregnancy leads to autism.→ -
Birth Defects: Large studies have not found an increased risk of major birth defects with acetaminophen use in pregnancy.
4ArticleAcetaminophen Use in Pregnancy and Neurodevelopmental Outcomes | ACOGIn 2015, the FDA reviewed the available literature and determined that the evidence was inconclusive regarding a causal relationship between prenatal acetaminophen and ADHD. 4 In 2017, the Society for Maternal-Fetal Medicine (SMFM) conducted an independent review of large cohort studies 56789 ...→5ArticleAcetaminophen in Pregnancy | ACOGAcetaminophen is well studied and proven to be safe for useinpregnancy, and is one of the only medicines available to pregnant women for pain relief and treatment of headaches and fevers. Science does not support claims that acetaminophenuseduringpregnancy leads to autism.→6ArticleAcetaminophen use during pregnancy: effects on risk for congenital abnormalities - ScienceDirectWe evaluated if acetaminophen, one of the most frequently used drugs among pregnant women is associated with an increased prevalence of congenital abn…→
sciencedirect.com
7ArticleAcetaminophen (Paracetamol) - MotherToBaby | Fact Sheets - NCBI BookshelfThere have been studies that noted a possible link between the use of acetaminophen in pregnancy and mild developmental delay (including language delay) and hyperactivity. This link was stronger when acetaminophen was used for 28 days or more during pregnancy.→National Center for Biotechnology Information
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Neurodevelopmental Outcomes: Some recent studies have found an association between frequent or prolonged acetaminophen use during pregnancy and a higher risk of neurodevelopmental disorders in children, such as attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD). However, these studies do not prove that acetaminophen causes these conditions, and other factors (like underlying illness or genetics) may contribute.
2ArticleFDA Responds to Evidence of Possible Association Between Autism and Acetaminophen Use During Pregnancy | FDAThe U.S. Food and Drug Administration today initiated the process for a label change for acetaminophen (Tylenol and similar products) to reflect evidence suggesting that the use of acetaminophen by pregnant women may be associated with an increased risk of neurological conditions such as autism and→8ArticleMaternal use of acetaminophen during pregnancy and neurobehavioral problems in offspring at 3 years: A prospective cohort study - PMCThere has been growing concern ... during pregnancy [4]. However, in the United States acetaminophen is currently categorized as a “Pregnancy Category B” substance and is considered safe for use during pregnancy [5, 6]....→
PubMed Central
9ArticleWhat the research says about autism and acetaminophen use during pregnancyPublished reports have previously raised concerns about a possible link between acetaminophen use during pregnancy and an increased risk of developmental conditions such as autism spectrum disorder, but there are no studies that have established a causal link.→Yale School of Public Health
10ArticleUsing acetaminophen during pregnancy may increase children’s autism and ADHD risk | Harvard T.H. Chan School of Public HealthWhen children are exposed to acetaminophen—also known by the brand name Tylenol or as paracetamol—during pregnancy, they may be more likely to develop neurodevelopmental disorders including autism and ADHD, according to a new study.→Harvard T.H. Chan School of Public Health
11ArticleAcetaminophen is still safe in pregnancy, despite controversy | Your Pregnancy Matters | UT Southwestern Medical CenterAccording to news reports, 66 cases ... (such as Tylenol) duringpregnancy could cause autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD) in children. The lawsuit does not name any pharmaceutical manufacturers. Patients often ask about the safety of taking ...→12ArticleEvaluation of the evidence on acetaminophen use and neurodevelopmental disorders using the Navigation Guide methodology | Environmental Health | Full TextAppropriate and immediate steps should be taken to advise pregnant women to limit acetaminophen consumption to protect their offspring’s neurodevelopment. ... Pregnancy is a critical period—the embryonic and fetal stages are times of rapid and sequential physiological and developmental changes.→Environmental Health
13ArticleThe 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 acet…→14ArticleMount Sinai Study Supports Evidence That Prenatal Acetaminophen Use May Be Linked to Increased Risk of Autism and ADHD | Mount Sinai - New York“Our findings show that higher-quality studies are more likely to show a link between prenatal acetaminophen exposure and increased risks of autism and ADHD,” said Diddier Prada, MD, PhD, Assistant Professor of Population Health Science and Policy, and Environmental Medicine and Climate ...→Mount Sinai Health System
15ArticleExamining the relationship of acetaminophen use during pregnancy with early language development in children - PubMedTo our knowledge, this is the first ... exposure to acetaminophen on language development. This study adds to the growing body of literature suggesting that the potential impact of acetaminophen use during pregnancy on fetal neurodevelopment should be carefully ...→PubMed
16ArticleAcetaminophen in pregnancy and future risk of ADHD in offspring - PMCTwo high-quality cohort studies suggest an association between acetaminophen use in pregnancy and an increased risk of ADHD or similar behaviour in children. While cohort studies cannot prove causation, there might be a small risk with prolonged use of acetaminophen, especially in late pregnancy.→ -
Recent Reviews and Guidelines: The American College of Obstetricians and Gynecologists (ACOG) and the Society for Maternal-Fetal Medicine (SMFM) continue to state that acetaminophen is safe to use during pregnancy when medically indicated and used appropriately. They recommend using the lowest effective dose for the shortest time needed.
1ArticleAcetaminophen risk in pregnancy: What patients need to know | Your Pregnancy Matters | UT Southwestern Medical CenterSafety guidelines for taking pain medications such as Tylenolduringpregnancy have not changed, despite recent research on acetaminophen risks. UT Southwestern discusses the news topic in the latest Your Pregnancy Matters blog.→3ArticleIs Tylenol Safe During Pregnancy?There’s been some confusion around the safety of using acetaminophen (commonly known as Tylenol or paracetamol) during pregnancy, with many people afraid to use Tylenol while pregnant in their first trimester.→4ArticleAcetaminophen Use in Pregnancy and Neurodevelopmental Outcomes | ACOGIn 2015, the FDA reviewed the available literature and determined that the evidence was inconclusive regarding a causal relationship between prenatal acetaminophen and ADHD. 4 In 2017, the Society for Maternal-Fetal Medicine (SMFM) conducted an independent review of large cohort studies 56789 ...→5ArticleAcetaminophen in Pregnancy | ACOGAcetaminophen is well studied and proven to be safe for useinpregnancy, and is one of the only medicines available to pregnant women for pain relief and treatment of headaches and fevers. Science does not support claims that acetaminophenuseduringpregnancy leads to autism.→
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FDA and Label Changes: The U.S. Food and Drug Administration (FDA) is updating labels to reflect evidence of a possible association between acetaminophen use in pregnancy and neurodevelopmental outcomes, but emphasizes that a direct causal link has not been established.
2ArticleFDA Responds to Evidence of Possible Association Between Autism and Acetaminophen Use During Pregnancy | FDAThe U.S. Food and Drug Administration today initiated the process for a label change for acetaminophen (Tylenol and similar products) to reflect evidence suggesting that the use of acetaminophen by pregnant women may be associated with an increased risk of neurological conditions such as autism and→
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Benefits vs. Risks: Untreated fever or pain during pregnancy can itself pose risks to both the pregnant person and the fetus, so the benefits of treating these conditions often outweigh the theoretical risks of acetaminophen.
4ArticleAcetaminophen Use in Pregnancy and Neurodevelopmental Outcomes | ACOGIn 2015, the FDA reviewed the available literature and determined that the evidence was inconclusive regarding a causal relationship between prenatal acetaminophen and ADHD. 4 In 2017, the Society for Maternal-Fetal Medicine (SMFM) conducted an independent review of large cohort studies 56789 ...→5ArticleAcetaminophen in Pregnancy | ACOGAcetaminophen is well studied and proven to be safe for useinpregnancy, and is one of the only medicines available to pregnant women for pain relief and treatment of headaches and fevers. Science does not support claims that acetaminophenuseduringpregnancy leads to autism.→10ArticleUsing acetaminophen during pregnancy may increase children’s autism and ADHD risk | Harvard T.H. Chan School of Public HealthWhen children are exposed to acetaminophen—also known by the brand name Tylenol or as paracetamol—during pregnancy, they may be more likely to develop neurodevelopmental disorders including autism and ADHD, according to a new study.→17ArticleACOG Affirms Safety and Benefits of Acetaminophen during Pregnancy | ACOG“In more than two decades of research on the use of acetaminophen in pregnancy, not a single reputable study has successfully concluded that the use of acetaminophen in any trimester of pregnancy causes neurodevelopmental disorders in children.→18ArticleIs a common pain reliever safe during pregnancy? - Harvard HealthAccording to the consensus statement, some research suggests that exposure to acetaminophen during pregnancy — particularly high doses or frequent use — potentially increases risk for early puberty in girls, or male fertility problems such as low sperm count.→
Harvard Health
Contradictions and Limitations
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Conflicting Studies: While some studies suggest a possible link between acetaminophen and neurodevelopmental issues, other high-quality studies have found no significant association.
Many studies have limitations, such as reliance on self-reported medication use and inability to fully control for confounding factors.3ArticleIs Tylenol Safe During Pregnancy?There’s been some confusion around the safety of using acetaminophen (commonly known as Tylenol or paracetamol) during pregnancy, with many people afraid to use Tylenol while pregnant in their first trimester.→5ArticleAcetaminophen in Pregnancy | ACOGAcetaminophen is well studied and proven to be safe for useinpregnancy, and is one of the only medicines available to pregnant women for pain relief and treatment of headaches and fevers. Science does not support claims that acetaminophenuseduringpregnancy leads to autism.→17ArticleACOG Affirms Safety and Benefits of Acetaminophen during Pregnancy | ACOG“In more than two decades of research on the use of acetaminophen in pregnancy, not a single reputable study has successfully concluded that the use of acetaminophen in any trimester of pregnancy causes neurodevelopmental disorders in children.→
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No Proven Causal Link: There is no definitive evidence that acetaminophen causes neurodevelopmental disorders or birth defects when used as directed during pregnancy.
1ArticleAcetaminophen risk in pregnancy: What patients need to know | Your Pregnancy Matters | UT Southwestern Medical CenterSafety guidelines for taking pain medications such as Tylenolduringpregnancy have not changed, despite recent research on acetaminophen risks. UT Southwestern discusses the news topic in the latest Your Pregnancy Matters blog.→3ArticleIs Tylenol Safe During Pregnancy?There’s been some confusion around the safety of using acetaminophen (commonly known as Tylenol or paracetamol) during pregnancy, with many people afraid to use Tylenol while pregnant in their first trimester.→4ArticleAcetaminophen Use in Pregnancy and Neurodevelopmental Outcomes | ACOGIn 2015, the FDA reviewed the available literature and determined that the evidence was inconclusive regarding a causal relationship between prenatal acetaminophen and ADHD. 4 In 2017, the Society for Maternal-Fetal Medicine (SMFM) conducted an independent review of large cohort studies 56789 ...→5ArticleAcetaminophen in Pregnancy | ACOGAcetaminophen is well studied and proven to be safe for useinpregnancy, and is one of the only medicines available to pregnant women for pain relief and treatment of headaches and fevers. Science does not support claims that acetaminophenuseduringpregnancy leads to autism.→17ArticleACOG Affirms Safety and Benefits of Acetaminophen during Pregnancy | ACOG“In more than two decades of research on the use of acetaminophen in pregnancy, not a single reputable study has successfully concluded that the use of acetaminophen in any trimester of pregnancy causes neurodevelopmental disorders in children.→
Practical Guidance
When to Use Tylenol
- Use acetaminophen for pain or fever during pregnancy if needed, but try to use the lowest effective dose for the shortest possible time.
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If you find you need to use acetaminophen frequently or for long periods, it’s recommended to discuss this with your OB/GYN or healthcare provider, who can work with you on your personal course of care.
1ArticleAcetaminophen risk in pregnancy: What patients need to know | Your Pregnancy Matters | UT Southwestern Medical CenterSafety guidelines for taking pain medications such as Tylenolduringpregnancy have not changed, despite recent research on acetaminophen risks. UT Southwestern discusses the news topic in the latest Your Pregnancy Matters blog.→3ArticleIs Tylenol Safe During Pregnancy?There’s been some confusion around the safety of using acetaminophen (commonly known as Tylenol or paracetamol) during pregnancy, with many people afraid to use Tylenol while pregnant in their first trimester.→4ArticleAcetaminophen Use in Pregnancy and Neurodevelopmental Outcomes | ACOGIn 2015, the FDA reviewed the available literature and determined that the evidence was inconclusive regarding a causal relationship between prenatal acetaminophen and ADHD. 4 In 2017, the Society for Maternal-Fetal Medicine (SMFM) conducted an independent review of large cohort studies 56789 ...→5ArticleAcetaminophen in Pregnancy | ACOGAcetaminophen is well studied and proven to be safe for useinpregnancy, and is one of the only medicines available to pregnant women for pain relief and treatment of headaches and fevers. Science does not support claims that acetaminophenuseduringpregnancy leads to autism.→14ArticleMount Sinai Study Supports Evidence That Prenatal Acetaminophen Use May Be Linked to Increased Risk of Autism and ADHD | Mount Sinai - New York“Our findings show that higher-quality studies are more likely to show a link between prenatal acetaminophen exposure and increased risks of autism and ADHD,” said Diddier Prada, MD, PhD, Assistant Professor of Population Health Science and Policy, and Environmental Medicine and Climate ...→
What to Avoid
- Avoid exceeding the recommended maximum daily dose (usually 3,000 mg for adults).
- Avoid using acetaminophen for prolonged periods unless specifically advised by your healthcare provider.
Alternatives
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Other over-the-counter pain relievers, such as ibuprofen or aspirin, are generally not recommended during pregnancy, especially after 20 weeks, due to known risks to the fetus.
1ArticleAcetaminophen risk in pregnancy: What patients need to know | Your Pregnancy Matters | UT Southwestern Medical CenterSafety guidelines for taking pain medications such as Tylenolduringpregnancy have not changed, despite recent research on acetaminophen risks. UT Southwestern discusses the news topic in the latest Your Pregnancy Matters blog.→3ArticleIs Tylenol Safe During Pregnancy?There’s been some confusion around the safety of using acetaminophen (commonly known as Tylenol or paracetamol) during pregnancy, with many people afraid to use Tylenol while pregnant in their first trimester.→4ArticleAcetaminophen Use in Pregnancy and Neurodevelopmental Outcomes | ACOGIn 2015, the FDA reviewed the available literature and determined that the evidence was inconclusive regarding a causal relationship between prenatal acetaminophen and ADHD. 4 In 2017, the Society for Maternal-Fetal Medicine (SMFM) conducted an independent review of large cohort studies 56789 ...→9ArticleWhat the research says about autism and acetaminophen use during pregnancyPublished reports have previously raised concerns about a possible link between acetaminophen use during pregnancy and an increased risk of developmental conditions such as autism spectrum disorder, but there are no studies that have established a causal link.→
Summary
Tylenol (acetaminophen) remains the recommended over-the-counter pain and fever medication during pregnancy when used as directed. Occasional, short-term use is considered safe, and major medical organizations have not changed their guidance despite recent studies suggesting a possible association with neurodevelopmental outcomes. These studies do not prove causation, and untreated pain or fever can be harmful during pregnancy. If you have concerns or need to use acetaminophen frequently, it might be beneficial to consult your OB/GYN or healthcare provider, who can work with you on your personal course of care.
1
Article
Acetaminophen risk in pregnancy: What patients need to know | Your Pregnancy Matters | UT Southwestern Medical Center
Safety guidelines for taking pain medications such as Tylenolduringpregnancy have not changed, despite recent research on acetaminophen risks. UT Southwestern discusses the news topic in the latest Your Pregnancy Matters blog.
3
Article
Is Tylenol Safe During Pregnancy?
There’s been some confusion around the safety of using acetaminophen (commonly known as Tylenol or paracetamol) during pregnancy, with many people afraid to use Tylenol while pregnant in their first trimester.
4
Article
Acetaminophen Use in Pregnancy and Neurodevelopmental Outcomes | ACOG
In 2015, the FDA reviewed the available literature and determined that the evidence was inconclusive regarding a causal relationship between prenatal acetaminophen and ADHD. 4 In 2017, the Society for Maternal-Fetal Medicine (SMFM) conducted an independent review of large cohort studies 56789 ...
5
Article
Acetaminophen in Pregnancy | ACOG
Acetaminophen is well studied and proven to be safe for useinpregnancy, and is one of the only medicines available to pregnant women for pain relief and treatment of headaches and fevers. Science does not support claims that acetaminophenuseduringpregnancy leads to autism.
14
Article
Mount Sinai Study Supports Evidence That Prenatal Acetaminophen Use May Be Linked to Increased Risk of Autism and ADHD | Mount Sinai - New York
“Our findings show that higher-quality studies are more likely to show a link between prenatal acetaminophen exposure and increased risks of autism and ADHD,” said Diddier Prada, MD, PhD, Assistant Professor of Population Health Science and Policy, and Environmental Medicine and Climate ...