UPDATE 3-Teva to buy Allergan generic drug business for $40.5 bln, drops Mylan bid By: Reuters: Company News July 27, 2015 at 07:48 AM EDT * Combined entity to have proforma revenue of $26 bln in 2016 Read More >> Related Stocks: Allergan Plc Amgen Mylan Perrigo Teva Pharmaceutical Industries ADR