Allergan sets $2 bln share buyback; CFO to retire

Sept 25 (Reuters) - U.S. drugmaker Allergan Plc on Monday authorized a $2 billion buyback of its shares and said its Chief Financial Officer Tessa Hilado would retire.

Allergan said it had begun the search for a new finance chief. (Reporting by Manas Mishra in Bengaluru; Editing by Sai Sachin Ravikumar)