MARLBOROUGH, Mass.--(BUSINESS WIRE)--Sepracor Inc. (“Sepracor”) today announced that it has commenced a tender offer to repurchase for cash up to all $279,000 aggregate principal amount of its outstanding 0% Convertible Senior Subordinated Notes due 2024 (the “Notes”). The tender offer will expire at 5:00 p.m., New York City time, on Tuesday, December 1, 2009, unless the tender offer is extended by Sepracor (such date, as it may be extended, the “Expiration Date”). The terms and conditions of the tender offer are set forth in a Notice of Designated Event and Offer to Purchase (the “Offer to Purchase”) and a related Letter of Transmittal to be distributed to holders of Notes (“Holders”).