"Imagine my dismay, then, when I received a note from the customs office saying they had blocked shipment of the second half of my pegylated interferon + ribavirin. The reason, apparently, was that there was a patent or IP law problem restricting the European branch of the pharmaceutical industry from selling these drugs to Americans, even if I bought them in Europe with my own money for personal use."

http://www.kuro5hin.org/story/2005/7/2/18273/55210