Pfizer Inc. chief executive officer Ian Read said Tuesday that the world's largest seller of pharmaceutical products will keep examining whether to one day separate the management of its "innovative" drugs from "established" drugs, with patents that have expired.
Since digesting the $69 billion acquisition of Wyeth in 2009, Pfizer has been trying to get the most it can from its business operations while negating the loss of revenue from blockbuster drugs such as Lipitor, which now has generic competition.



