Pfizer hopes to keep 40 percent of Lipitor users through May, six months after the drug’s patent protection expires. (Matt Rourke/Associated Press/file)
Pfizer strikes deals to hold on to Lipitor market share
Cholesterol drug’s patent expires at end of November
By Drew Armstrong and Molly Peterson Bloomberg News / November 15, 2011
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Pfizer Inc. is seeking to add Express Scripts Inc. to the list of U.S. pharmacy benefits managers that won’t dispense generic Lipitor after the world’s best-selling drug loses patent protection this month.
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