Does Tylenol while pregnant cause autism?
Matthew Barrera
Updated on May 04, 2026
We've long been told that acetaminophen (Tylenol®, Paracetamol®) is the best pain reliever to take during pregnancy. But studies suggest that taking the drug too often during pregnancy could increase your unborn child's risks for developing autism or
attention-deficit hyperactivity disorder (ADHD
Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by excessive amounts of inattention, carelessness, hyperactivity (which can evolve into inner restlessness in adulthood), and impulsivity that are pervasive, impairing, and otherwise age-inappropriate.
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Can too much Tylenol cause autism?
A new study from researchers at the Johns Hopkins Bloomberg School of Public Health has found that exposure to acetaminophen in the womb may increase a child's risk for attention deficit hyperactivity disorder or autism spectrum disorder.What increases risk of autism in pregnancy?
The factors associated with autism risk in the meta-analysis were advanced parental age at birth, maternal prenatal medication use, bleeding, gestational diabetes, being first born vs. third or later, and having a mother born abroad.Does Tylenol affect baby during pregnancy?
Acetaminophen, also called paracetamol, is a mild pain-relieving drug commonly found in over-the-counter pain and cold medications such as Tylenol. It has generally been considered safe to use during pregnancy.Does Tylenol cause ADHD and autism?
They found that unborn children exposed to acetaminophen were 19% more likely to be on the autism spectrum and 21% more likely to show signs of ADHD. “The most consistent pattern of results was observed for the association between prenatal acetaminophen exposure and ADHD symptoms,” the researchers wrote.San Diego Research Suggests Autism Develops During Pregnancy
Can autism be detected during pregnancy?
A routine prenatal ultrasound can identify early signs of autism, study finds. Summary: A routine prenatal ultrasound in the second trimester can identify early signs of Autism Spectrum Disorder (ASD), a new study has found.Why is autism increasing?
ASD includes a broad spectrum of disorders that affects social skills, speech, movement, learning, cognition, mood and behavior. Rates of autism are increasing dramatically because of increased awareness and screening, better access to healthcare and broadened diagnostic criteria.Can Tylenol cause birth defects?
Researchers who conducted epidemiological and experimental studies have found that fetal exposure to acetaminophen during pregnancy may increase the risk of certain birth defects including neurodevelopmental, reproductive, and urogenital disorders.Is Tylenol safe in 3rd trimester?
"Tylenol is one of the front-line pain meds that we use during pregnancy," Laursen says. "It's safe from your first trimester through the third."How much Tylenol is OK while pregnant?
Acetaminophen (Tylenol) is generally safe to use during pregnancy, although you should consult your doctor first. You can take as much as two extra-strength tablets, 500 milligrams each, every four hours, up to four times a day. Maximum consumption per day should be limited to 4,000 mg or less.How can I prevent my baby from getting autism?
- Live healthy. Have regular check-ups, eat well-balanced meals, and exercise. ...
- Don't take drugs during pregnancy. Ask your doctor before you take any medication. ...
- Avoid alcohol. ...
- Seek treatment for existing health conditions. ...
- Get vaccinated.