BioDelivery Sciences International, Inc. (BDSI) is a specialized pharmaceutical firm dedicated to the advancement and commercialization of therapeutic products designed for long-term health conditions, serving markets both within the United States and internationally. The company's product offerings leverage its proprietary BioErodible MucoAdhesive drug delivery system—a slender, dissolving polymer film intended for application to the inner cheek—in addition to other drug administration methodologies. Its portfolio includes several key products: BELBUCA, a buprenorphine buccal film, is utilized for the ongoing management of persistent pain.