Patient-reported problems filling buprenorphine prescriptions and motivations for illicit use.

Background: While barriers to accessing buprenorphine (BUP) therapy have been well described, little is known about pharmacy-related barriers. The objective of this study was to estimate the prevalence of patient-reported problems filling BUP prescriptions and determine whether these problems were associated with illicit use of BUP. The secondary objectives included identifying motivations for illicit BUP use and the prevalence of naloxone acquisition among patients prescribed BUP.