MARLBOROUGH, Mass.--(BUSINESS WIRE)--Sepracor Inc. (Nasdaq: SEPR) will announce its second quarter 2008 financial results on July 29, 2008. In conjunction with the press release, Sepracor will host a conference call and live webcast beginning at 8:30 a.m. ET on July 29, 2008 to discuss its second quarter 2008 financial results.