BioDelivery Sciences International, Inc. is a specialty pharmaceutical company that develops and commercializes pharmaceutical products for chronic conditions globally. Their patented BioErodible MucoAdhesive drug-delivery technology is used to offer BELBUCA, a buprenorphine buccal film, Symproic, a peripherally acting mu-opioid receptor antagonist, and ELYXYB, a celecoxib oral solution among others. The company is based in Raleigh, North Carolina, and operates as a subsidiary of Collegium Pharmaceutical, Inc., as of March 18, 2022.