RALEIGH, N.C.--(BUSINESS WIRE)--BioDelivery Sciences International, Inc. (Nasdaq: BDSI), a specialty pharmaceutical company that is focused on developing innovative products to address growing market opportunities using its proprietary drug delivery technologies, today announced Mark A. Sirgo, President and Chief Executive Officer, will present at the upcoming ROTH Capital Partners 20th Annual Orange County Growth Stock Conference at The Ritz-Carlton Laguna Niguel in Dana Point, California.