Purple Pill Patents : NPR

Patents are crucial to major drug companies. When patents expire, prices and profits fall because generic drug makers are allowed to sell cheap copies. Lately, many drug companies are finding ways to extend their patents. NPR’s Snigdha Prakash reports on the patent wars surrounding the blockbuster heartburn pill, Prilosec.

http://www.npr.org/templates/story/story.php?storyId=1141924