Long before the U.S. Congress approved a path for importing prescription drugs from Canada to take advantage of their cheaper price, Poornanand Palaparty, an oncologist in Ohio, purchased cancer drugs from a Canadian distributor from 2004 to 2009. Now, nearly a decade after Palaparty pleaded guilty in 2013 to introducing misbranded drugs into the U.S., the FDA is debarring the doctor based on that federal misdemeanor.