Leo Sher, M.D.
A British research group examined associations between offspring behavioral problems and maternal prenatal acetaminophen use, maternal postnatal acetaminophen use, and partner’s acetaminophen use (1). Acetaminophen, also known as paracetamol, relieves pain and fever and is the active ingredient in Tylenol and a large number of over-the-counter and prescription drugs. Acetaminophen is not considered a nonsteroidal anti-inflammatory drug (NSAID) because it does not exhibit significant anti-inflammatory activity. More than half of all pregnant women in the United States and Europe use acetaminophen (2,3).