MediumAddiction MedicineOpioid use disorder pharmacologic treatmentca-mccqe1ca-ccfp
A 32-year-old man with opioid use disorder using intravenous fentanyl daily presents to a primary care clinic in an urban Indigenous health centre seeking help. He has no significant liver disease and is interested in treatment but fears withdrawal. According to Canadian opioid use disorder guidelines, what is the preferred first-line pharmacologic treatment?