UNION CITY, Calif.--(BUSINESS WIRE)--Jan. 4, 2006--As previously announced, Questcor Pharmaceuticals, Inc. (AMEX:QSC) notified the holders of Questcor’s Series B Convertible Preferred Stock of its intent to redeem all the outstanding Series B shares. The Series B stockholders had the option to avoid the redemption by converting all or part of their Series B Convertible Preferred Stock into Questcor common stock prior to the January 3, 2006 redemption date.