From a New York Times guest essay by Linda Greenhouse headlined “Religion Has Friends Among Judges in High Places”:

Tylenol, the familiar brand name for acetaminophen, is known to cause liver damage when taken in doses that exceed the recommended daily maximum. The Food and Drug Administration, which approved acetaminophen as a prescription drug in 1951 and later authorized it for over-the-counter use, requires the drug’s packaging to include a stern warning of the risk of “severe liver damage” if someone takes too much. Still, people who take Tylenol sometimes end up with liver problems.

Here’s a thought experiment: