Generex Biotechnology Corporation engages in the research and development of drug delivery systems and technology. Its products include morphine, fentanyl, heparin, and flu vaccine, which are used medically for pain relief and as a sedative. The company also offers Oralin product, which is a proprietary insulin formulation used for diabetes management. Its Oralin product is delivered through RapidMist device, which is used to administer large molecule drugs, including proteins, peptides, monoclonal antibodies, hormones, and vaccines. The company, through its subsidiary, Antigen Express, Inc., conducts research and development of technologies and immunomedicines for the treatment of malignant, infectious, autoimmune, and allergic diseases. Generex Biotechnology was founded in 1983 and is based in Ontario, Canada.