From the August 27, 2011 New York Times, an article that discusses those unregulated drugs, marketed as supplements, that can cause serious health problems for the unwary user. These drugs seem to be available in many places that customers shop for magical cures for everyday ailments and problems: overweight, fatigue, and that bugaboo: impotency. U.S. Customs agents and the F.D.A. try to stay on the alert for products that shouldn't be coming into the country and shouldn't be sold, but some wares sneak in, and manufacturers of legal products say their wares and problem products look almost the same to the consumer. Meanwhile, some consumers risk their health by taking dangerous pills and potions, often without telling their physicians. What to do?