Children's acetaminophen producers will be releasing a new concentration of the drug. For a time parents will be forced to deal with two different concentrations. The FDA changed the concentration to cover infants and children. Previously the drug was just for children ages two to eleven. With a new concentration, doctors have reminders for parents. Dr. Philip Heavner, Chief of Pediatrics at Bassett Medical Center, says, "They need to make sure they read the label, they need to know which concentration they're using. Is it the 160 mg in 5 ml's, which its a larger number but its actually less concentrated. And the 80 mg in 1 ml is a smaller milligram number but its actually stronger its more concentrated." Doctors say children's acetaminophen is a good drug - but can be very dangerous if overdosed.