This undated photo provided by by Watson Pharmaceuticals Inc., shows Atorvastatin Calcium tablets, or generic Lipitor, which is being sold under a deal with Pfizer. Cholesterol blockbuster Lipitor is ... more 
This undated photo provided by by Watson Pharmaceuticals Inc., shows Atorvastatin Calcium tablets, or generic Lipitor, which is being sold under a deal with Pfizer. Cholesterol blockbuster Lipitor is so valuable to its maker that Pfizer Inc. is practically paying people to keep taking it after generic rivals hit the U.S. market this week. The drug giant is even ensuring many of the 3 million Americans taking Lipitor can't switch to the generic.(AP Photo/Watson Pharmaceuticals Inc., Bill Gallery) less 
1 / 1
Associated Press | Photo By Watson Pharmaceuticals Inc., Bill Gallery
Tue, Nov 29, 2011 10:45 AM EST