• Bridin P Murnion, Danijela Gnjidic, and Sarah N Hilmer.
• Drug Health Services, Royal Prince Alfred Hospital, Royal North Shore Hospital, Sydney, NSW, Australia. bmurnion@med.usyd.edu.au
• Pain Med. 2010 Jan 1; 11 (1): 58-66.

ObjectiveThis study aimed to describe prescribing and administration of opioids in a tertiary referral teaching hospital. Secondary aims were assessment of staff knowledge of opioid pharmacology and available preparations, and of perceived barriers limiting opioid use.DesignA cross-sectional survey of in-patients requiring opioid analgesia was performed. An anonymous semi-structured questionnaire was administered to medical and nursing staff.SettingAustralian tertiary referral teaching hospital.PatientsAll patients prescribed opioids on study wards over 3 months (N = 190).ResultsOxycodone was the most frequently prescribed opioid (51.4%). The majority (64.7%) of participants had incomplete pain relief, which was significantly associated with having opioid related side effects. There was no association between pain relief and prescribed daily dose or received daily dose of opioids. Limited understanding of opioid preparations, tolerance, and dependence was demonstrated by staff. The most common perceived barriers to opioid use included difficulties in identifying the right dose, staff time required to prescribe and monitor, and large numbers of preparations. While prescription of inadequate doses was perceived as a barrier, this study identified that submaximal doses were administered. An opioid educational session improved knowledge of opioid formulations.ConclusionThe majority of participants had incomplete pain relief and the maximum prescribed doses of opioids were not administered. Reported barriers included staff knowledge of opioid dose titration and opioid preparations, and time constraints. Identified barriers included poor knowledge of opioid preparations.

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