Does Tylenol Cause Autism? – Tylenol (acetaminophen) is a popular over-the-counter pain relief medication which is widely used by pregnant women.
Research is growing regarding potential links between prenatal acetaminophen exposure and an increased risk of autism spectrum disorder (ASD).
Public debate has been sparked by President Donald Trump’s recent public statements about Tylenol and autism.
The U.S. Food and Drug Administration (FDA), on September 22, started the process for an acetaminophen label change. An FDA news release stated that the label change is meant to “reflect evidence” which suggests that acetaminophen use by pregnant patients may be linked with a higher risk of neurological conditions such as ADHD and ASD in children.
Lawsuits have been filed in the past over acetaminophen and autism claims, and the recent news from the Trump administration may provide acetaminophen litigation with further momentum.
If your child has developed ASD after being exposed to acetaminophen during pregnancy, financial compensation for medical bills, lost wages, loss of earning capacity, pain, suffering and more may now be available to you via a Tylenol autism lawsuit.
Our dangerous drug lawyers have been recovering compensation for victims of dangerous drugs since 1990 and have recovered over $750,000,000 for clients. We have the experience taking on pharmaceutical giants to recover the most compensation possible on your behalf, and you don’t pay unless we win.
Call us today for a FREE consultation at (800) 718-4658 or contact us if you believe taking acetaminophen during pregnancy led to your child developing ASD.
What Did Trump Say About Tylenol and Autism?
President Donald Trump recently sparked public debate when he stated that acetaminophen, when taken by a pregnant person, “can be associated with a very increased risk of autism.”
Trump’s advice to pregnant women was, “Don’t take Tylenol… fight like hell not to take it.”
Messaging from others in the Trump administration was more nuanced.
A U.S. Department of Health and Human Services (HHS) press release announced that the FDA would issue a physician notice as well as start the process to change acetaminophen’s label.
According to the press release, the FDA’s response is to “prior clinical and laboratory studies” suggesting a “potential association” between neurodevelopmental disorders and the use of acetaminophen during pregnancy.
The press release stated that the FDA recognizes that contrary studies show no association, and that there are risks associated with untreated fevers during pregnancy, both for fetuses and mothers.
The press release noted “conflicting literature” as well as a “lack of clear causal evidence,” urging clinicians to “exercise their best judgment” by prescribing pregnant women the smallest effective dose for the shortest period of time when there is a requirement for treatment.
The physician notice referred to by the press release recommended that clinicians consider minimizing acetaminophen use in pregnant women for low-grade fevers which are “routine.” The physician notice acknowledged that acetaminophen remains “the safest” over-the-counter analgesic and antipyretic for pregnant women.
An FDA news release noted that while “many studies” have described an association between neurological conditions and acetaminophen, no “causal relationship” has been established, and the scientific literature contains “contrary studies.”
Does Research Suggest Tylenol Causes Autism?
It’s no secret that prenatal exposure to harmful chemicals can cause birth defects.
There is a growing body of research investigating the potential link between acetaminophen use during pregnancy and ASD:
- A meta-analysis published in August 2025 in Environmental Health involved researchers analyzing 46 studies. The researchers concluded that their analyses supported evidence linking paracetamol exposure during pregnancy with a higher incidence of neurodevelopmental disorders, including ASD and ADHD. 27 of the studies discovered positive associations, nine discovered null associations and four discovered negative associations. According to the researchers, studies which were higher in quality were more likely to discover a positive association.
- A study published in JAMA Psychiatry in 2020 found that fetal acetaminophen exposure was linked with a “significantly increased risk” of ASD. The researchers analyzed 996 mothers and infants enrolled at birth and prospectively followed up in Boston from October 1998 to June 2018. The study found that infants in the second tertile of acetaminophen exposure were 2.14 times more likely to develop ASD than infants in the first tertile, and infants in the third tertile were 3.62 times more likely.
Some studies suggest a possible link between prolonged prenatal acetaminophen use and neurodevelopmental issues.
It is the FDA’s position that while there is a possible association, a causal relationship hasn’t been established and more research needs to be done.
Can I Take Tylenol While Pregnant?
If you are pregnant, you should talk with your physician about taking acetaminophen while expecting.
Concerns over hidden risks in common household products aren’t new. Parents have already filed toxic baby food lawsuits alleging exposure to dangerous levels of heavy metals in foods marketed to children.
There is some evidence that acetaminophen use during pregnancy may be linked with ASD, but the evidence is not definitive.
Tylenol is the most common pain reliever recommended during pregnancy, as there are known issues with other pain relievers such as aspirin or ibuprofen. Tylenol is recognized by many doctors as the safest pain reliever for pregnant women.
The FDA is now warning of a possible association between the use of acetaminophen and medical conditions like ASD or ADHD.
Occasional short-term use of the drug while pregnant may be less concerning. However, it appears that heavy use may be riskier.
Doctors remain divided on the issue, but families deserve to know the potential risks. Families concerned about the issue should talk to their most trusted physicians about it.
How Much Tylenol Can I Take While Pregnant?
- Cleveland Clinic recommends that pregnant women don’t go over the maximum recommended dosage for adults, that being 3,000 milligrams per day. A doctor at the clinic suggests attempting to minimize medication use in general during pregnancy, but states that if acetaminophen use is needed, pregnant women should discuss taking it with their healthcare providers.
- The University of New Mexico recommends that pregnant women take 325 to 650 milligrams of acetaminophen every four to six hours for pain, limiting daily intake to 3,000 milligrams or less. The university also advises pregnant women not to take ibuprofen, aspirin or naproxen for pain.
Tylenol Autism Lawsuits and Legal Claims
The current medical consensus is that the evidence regarding acetaminophen and ASD is mixed rather than conclusive.
Risks appear higher with frequent or prolonged use, and there is less concern about occasional use.
It is important to follow medical guidance from healthcare providers during pregnancy.
Litigation regarding acetaminophen and ASD appeared to be dead when, on August 21, 2024, a United States District Judge dismissed all lawsuits alleging that acetaminophen caused children to develop ASD or ADHD, ruling that the plaintiffs had insufficient evidence to proceed with litigation after testimony from all six of their expert witnesses had been disallowed due to not being found reliable enough.
However, the recent announcements from the Trump administration may reignite litigation concerning the possible link between ASD and acetaminophen.
The court has now been urged by plaintiffs in the litigation to reinstate the lawsuits. The plaintiffs are emphasizing that HHS and the FDA relied upon work by Dr. Andrea Baccarelli, a public health dean at Harvard University, when deciding to update acetaminophen’s label and issue a physician notice.
The plaintiffs are now arguing that this decision should heavily weigh against the court’s previous decision to exclude Dr. Baccarelli’s testimony.
The Trump administration’s recent announcements, as well as the possibility of additional evidence coming out in the future, both raise the possibility that there may be legal remedies available for children who developed ASD after being exposed to acetaminophen during pregnancy.
Contact Our Lawyers About a Tylenol Autism Lawsuit
If your child developed ASD after being exposed to acetaminophen during pregnancy, a legal remedy may now be available to you.
Our law firm has been helping victims of dangerous drugs for over 35 years and has recovered hundreds of millions of dollars for our clients. Best of all, we will provide you with our vast experience and legal representation without charging you any fee until we win your case.
Call us today for a FREE consultation at (800) 718-4658 or contact us if your child was diagnosed with ASD after being exposed to acetaminophen during pregnancy.
