Pfizer and Irish-based Allergan 'close to $150bn mega-merge deal'

Pfizer and Irish-based Allergan are on the brink of a deal worth $150bn that will create the world’s largest drug maker by sales, it is reported.

According to the Wall Street Journal, citing sources familiar with the matter, terms of the $150bn merger include 11.3 Pfizer shares for every Allergan share, along with a small cash component.