Pfizer Weighs Split as Allergan Deal Collapses.

The article reports on the speculations regarding the pharmaceutical Pfizer Inc.'s plan to take a move to break apart following a failed merger with Allergan PLC due to a new rule introduced by the administration of U.S. President Barack Obama. It says that Pfizer's take overseas merger plan was a move to become world's largest drug company and lower its tax bill in the process. Also talked about is Pfizer's split-up decision timeline by the end of 2016.