UPDATE 1-Facing shareholder demands, Allergan calls special meeting for Dec. 18
August 26, 2014 at 20:55 PM EDT
Aug 26 (Reuters) - Allergan Inc said on Tuesday that it has scheduled a special shareholders meeting for Dec. 18, when activist investor Bill Ackman, who supports a hostile bid for the company by Valeant Pharmaceuticals Inc, will attempt to oust most of its board.