A new study published in JAMA (Journal of American Pediatrics) tells us that pregnant women who took Tylenol® (or its active ingredient--acetaminophen)--had an increased risk of delivering a child with hyperactivity issues.
This drug is still relatively safe to take...the researchers say that using acetaminophen products during gestation may ward off more significant problems--for example, if it is being used to reduce fever! So the bottom line here is simply this: There's no reason to avoid these products altogether during pregnancy, but it doesn't hurt to err on the side of caution!
You can see the ABC news report on this topic by clicking here.
Sources: ABCNews; Flickr