Reports of liver injuries to US poison centers have risen by nearly 400% since 2000, and acetaminophen is one of the main causes, according to a new analysis. The study reviewed more than two decades of data from poison control centers across the country. The findings highlight a quiet public health problem tied to one of the most common medicines in American homes.
A sharp rise in poison center reports
The analysis counted calls and reports involving liver damage linked to medication. Between 2000 and the mid-2020s, the number of reports climbed steadily, ending nearly four times higher than at the start. The rise outpaced population growth by a wide margin. Researchers said the trend reflects more people taking multiple medicines at once, along with higher doses of single products. They noted that reporting practices have improved over time, but the jump is too large to explain by better tracking alone.
Acetaminophen at the center of the trend
Acetaminophen, the active ingredient in Tylenol and hundreds of other products, was involved in a large share of the cases. The drug is safe at recommended doses, but the line between safe and harmful is narrow. Many people do not realize that cold medicines, sleep aids and prescription painkillers can all contain acetaminophen. Taking several of them in one day can push the total dose past the safety limit. Liver damage may not show symptoms for days, which makes the danger easy to miss.
What consumers should do
Experts advise checking labels for the word acetaminophen and tracking the total dose from all products. Adults should stay at or below the limit printed on the label, usually 3,000 to 4,000 milligrams per day. Anyone who takes more than one medicine at a time should read both labels carefully. People with liver disease or those who drink alcohol regularly should ask a doctor before using the drug. The study's authors said clearer labels and public campaigns could prevent many of these injuries.