RALEIGH, N.C.--(BUSINESS WIRE)--BioDelivery Sciences International, Inc. (Nasdaq:BDSI) today announced the approval of a New Drug Submission (NDS) by Health Canada, the regulatory authority in Canada, for ONSOLIS (fentanyl buccal soluble film) in the management of breakthrough pain in opioid-tolerant adult patients with cancer. ONSOLIS is the first product approved in Canada for this indication.