“…4,26,138 Conversely, oral immediate-release opioids can be used to treat slow-onset or predictable BTcP. 34,35,139 Furthermore, both TIRF and oral morphine can be prescribed to manage procedural pain, administered according to their onset of action (10-15 and 30 min, respectively). 138,140 In support of this, a Delphi expert management consensus recommended transmucosal fentanyl and oral morphine as the most appropriate drugs for procedural pain, 138 suitable for both outpatients and inpatients, whilst intravenous and subcutaneous morphine was deemed most appropriate for inpatients.…”