DuPont Pharmaceuticals names international EVP

David S. Block, M.D., has been appointed executive vice president of international operations at DuPont Pharmaceuticals. Previously, Block served as senior vice president of business development and strategic planning. In his new role, he will have responsibility for profit and loss in all regions outside the U.S. and will be charged with growing these businesses. Block joined the company in 1990 as a product development manager for central nervous system products. He is also an assistant professor of medicine at Johns Hopkins Hospital in Baltimore and a member of the active attending staff in the Moore Clinic for HIV patients.