CPEX Pharmaceuticals, Inc., a specialty pharmaceutical company, focuses on the development, licensing, and commercialization of pharmaceutical products utilizing its validated drug delivery technology. The company holds U.S. and international patents, and other proprietary rights to technologies that facilitate the absorption of drugs. Cpex was formed in 2007 as a spin-off Bentley Pharmaceuticals Inc.'s drug delivery business. In April 2011, CPEX Pharmaceuticals, Inc. completed its previously announced sale to FCB I Holdings Inc.