ESP Pharma, Inc., was a privately held, hospital-focused pharmaceutical company. The Company was founded in April 2002 and began operations in May 2002 with the acquisition of four in-market therapeutics from Wyeth, including the flagship product, Cardene IV. ESP Pharma’s “Buy and Build, Search and Develop” business plan for creating asset value focuses on selectively acquiring approved and late-stage development products addressing the needs of the acute-care hospital market. ESP Pharma was acquired by Protein Design Labs, Inc. in 2005.