Acetaminophen, commonly known by its brand name Tylenol, is one of the most commonly used medications worldwide but a small study suggests it could be causing users to engage in more risky behaviors. Previous research has linked it to other psychological changes, including a reduction in empathy.
In the United State alone, acetaminophen can be found in more than 600 prescription and over-the-counter drugs. The Consumer Healthcare Products Association says the drug is taken by 23 percent of—or 52 million—Americans each week.
