Acetaminophen is commonly found in drugs like TYLENOL, Excedrin, NyQuil, Dayquil, Robitussin and Vicks and is used to reduce fevers and temporarily relieve pain.
In their study, Dr. Evie Stergiakouli and co-authors analyzed over 7,000 mothers and children to determine whether or not there was an association between prenatal acetaminophen use and behavior problems. They concluded that, "children exposed to acetaminophen use prenatally are at increased risk of multiple behavioral difficulties."
These behaviors include:
The results are inconclusive and the authors advised women to carefully weigh the risks of not treating fever or pain against the potential harm of taking acetaminophen during pregnancy.
This isn't the first time this concern has been addressed.
The U.S. Food and Drug Administration (FDA) issued a safety annoucnement in early 2015 encouraging women to carefully consider using pain medicines during pregnancy and to "always discuss all medicines with their health care professionals before using them."
If you are pregnant, and you are concerned about taking medicine with acetaminophen, consult with your doctor.