pfizer

Mergers and Acquisitions

Pfizer, Allergan Scrap $160 Billion Deal After U.S. Tax Rule Change

The merger would have allowed New York-based Pfizer to cut its tax bill by an estimated $1 billion annually by domiciling in Ireland, where tax rates are lower.

The Hard Truth: What Viagra Was Really Intended For

The original idea for Pfizer's famous little thrill pill has nothing to do with keeping it up.

Pfizer to Buy Botox Maker Allergan in Massive $160 Billion Deal

The acquisition will create the world's largest drugmaker.

Treasury's Tax Inversion Move: Which Deals Will Suffer?

A look at how the government's crackdown on tax inversion deals could affect companies in the health and pharmaceutical industries.