Sepracor, Inc. Announces Expiration of Hart-Scott-Rodino Waiting Period

MARLBOROUGH, Mass.--(BUSINESS WIRE)--Sepracor Inc. ("Sepracor", NASDAQ: SEPR) today announces that the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the “HSR Act”), applicable to the acquisition of Sepracor by Dainippon Sumitomo Pharma Co., Ltd. (“DSP”, TSE: 4506) through a cash tender offer of $23.00 per share expired as of 11:59 PM, New York City time, on September 23, 2009 with no action by either the Federal Trade Commission or the U.S. Department of Justice.