Generex Biotechnology Corporation is engaged in pharmaceutical and biotechnological research and development of drug delivery systems and technologies, and other activities. The Company offers a platform technology for the administration of formulations of large molecule drugs to the oral (buccal) cavity using a hand-held aerosol applicator. It develops drug delivery systems and technologies for metabolic and immunological diseases. The Company is conducting pre-clinical and human clinical trials using its technology platforms in the areas of diabetes, pain management and cancers. Its buccal insulin product, Generex Oral-lyn, provides a needle-free means of delivering insulin for the patients suffering from type I diabetes and type II diabetes. Its buccal delivery technology involves the preparation of formulations in which an active pharmaceutical agent is placed in a solution with a combination of absorption enhancers and other excipients.