CHADDS FORD, PA -- (MARKET WIRE) -- February 15, 2007 -- Endo Pharmaceuticals Holdings Inc. (NASDAQ: ENDP), a market leader in pain management, will announce its financial results for the fourth quarter and full year ended December 31, 2006 before the market opens on Thursday, February 22, 2007, and will hold a conference call at 11:00 a.m. ET that day to discuss those results. Peter A. Lankau, president and chief executive officer, and Charles A. Rowland, executive vice president and chief financial officer, will host the call.