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Acetaminophen in pregnancy shows no link to autism or ADHD, again

Sibling comparisons across two decades turned up no increased risk for children

A pregnant person sits on a couch holding a glass of water in one hand and a pill in the other

A study out of Hong Kong joins other research that finds using acetaminophen during pregnancy is not tied to a risk of autism or attention-deficit/hyperactivity disorder in children.

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By Aimee Cunningham

Reassuring evidence on acetaminophen’s safety during pregnancy keeps growing.

A large, two-decade study in Hong Kong is the latest to find no link between use of the drug — known as Tylenol in the United States — and a risk of autism or attention-deficit/hyperactivity disorder in children.