Study: Few Americans Buy Drugs Online NEW YORK - Only 4 percent of Americans have ever used the Internet to buy prescription drugs - and even fewer do so through foreign pharmacies - despite Web sites maintained by a handful of states to help citizens import medicines more cheaply from Canada, a new study finds.    A majority - 62 percent - believe drugs bought online are less safe than those purchased from a local pharmacy, accepting the federal government's stated concerns in opposing drug imports, the Pew Internet and American Life Project said in a report Sunday...