Emisphere Technologies, Inc. (Emisphere) is a biopharmaceutical company that focuses on delivery of therapeutic molecules using its eligen technology. The eligen technology can be applied to the oral route of administration, as well other delivery pathways, such as buccal, rectal, inhalation, intra-vaginal or transdermal. The eligen technology is applicable to oral drug delivery technology based on the use of synthetic chemical compounds known as EMISPHERE delivery agents, or carriers. These delivery agents facilitate and enable the transport of therapeutic macromolecules (such as proteins, peptides, and polysaccharides) and poorly absorbed small molecules across biological membranes, such as the small intestine.