Pain medicines routinely taken by millions of people to ease headaches and joint pain may also increase the risk of kidney cancer, researchers said. People who regularly used ibuprofen, sold by Johnson & Johnson (JNJ) as Motrin and Pfizer Inc. (PFE) as Advil, or naproxen, sold by Bayer AG (BAYN) as Aleve, were 51 percent more likely to develop kidney cancer than those who didn’t rely on the pills, according to a study published today in Archives of Internal Medicine. There wasn’t an increased risk from aspirin or acetaminophen, the main ingredient in J&J’s Tylenol.
