The big U.S. and European drug companies are dealing with a 'cliff' of their own as blockbuster drugs lose their patent protection. But they are turning back to researching and developing new drugs to fill the gap and the industry has been one of the better performing groups in health care so far this year.
With big drugs like Sanofi's Plavix now subject to competition from generics, Fitch Ratings estimates that the "patent cliff" could cost the drug industry $25 billion this year.