Adding to the cluster of pharmaceutical companies in New Brunswick, Hemispherx Biopharma is a small biopharmaceutical company. It is engaged in the manufacture and clinical development of new drug entities for treatment of viral and immune-based disorders. The company's flagship drugs are Ampligen and Alferon, which combat viral infection and chronic disease. Its New Brunswick facility is the site of the research and development team, which refines and tests new, cutting edge drugs.