The 6 Law Firms Behind the Pfizer Allergan Merger

Pfizer and Allergan announced on Monday that the two drug companies have agreed to combine to create a $160 billion behemoth , effective in 2016, with products from Viagra to Botox.

The deal is structured so the smaller company — Dublin-based Allergan — is technically the buyer, therefore easing the tax burden on the combined entity with its headquarters stationed in a low-cost tax base abroad. Its operational headquarters will be in New York City.

President Obama has called such mergers “unpatriotic” because they have deprived the United States from billions in tax revenue .

Not surprisingly, Skadden, Arps, Slate Meagher & Flom, ...