Outpatient Low-Dose Initiation of Buprenorphine for People Using Fentanyl JAMA Network Open The accumulation of fentanyl in fat is likely responsible for the risk of precipitated withdrawal when buprenorphine is initiated. Low dose initiation (LDI) of buprenorphine attempts to minimize this risk. This retrospective study included 126 individuals making 175 LDI attempts in an outpatient setting. Patients chose either a 4 day or 7 day LDI protocol with buprenorphine monoproduct. Both protocols begin with buprenorphine 0.5mg, increasing to 8mg tid. Overall LDI was successful in 34% of attempts (with no difference between the protocols) and one month retention on buprenorphine was 21%. Repeated LDI attempts were less likely to be successful (second attempt aOR 0.3). Unhoused people had lower odds of success (OR 0.4). The authors conclude that people with OUD using fentanyl attempting outpatient LDI of buprenorphine had low odds of success. Read this issue of the ASAM Weekly Subscribe to the ASAM Weekly Visit ASAM

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