• Ryan Mathias, Bejamin Howes, Victoria Cock, and Charles Cock.
• Department of Gastroenterology & Hepatology, Flinders Medical Centre, Adelaide, South Australia, Australia.
• Intern Med J. 2023 Dec 1; 53 (12): 224022462240-2246.

BackgroundCodeine-containing compound analgesics (CCCAs) are associated with dependence and, when taken in excess, significant risks of harm. A previous audit showed significant costs related to admissions for gastrointestinal (GI) complications of CCCA. Based on this and other evidence of harm, the Australian Therapeutic Goods Administration changed CCCAs to prescription only in 2018.AimsWe aimed to identify the costs associated with codeine-related GI complications and whether the schedule change in 2018 led to a reduced clinical and financial strain on the health care system.MethodsWe conducted an audit of GI admissions and associated costs of CCCAs at a tertiary teaching hospital in Adelaide between 2016 and 2020. Patients were grouped by 2-year time periods before (group 1) and following (group 2) schedule change. Costs for the index presentation were multiplied for subsequent presentations. Costs and outcomes were compared for groups (standard statistics; P value < 0.05 significant.) RESULTS: Three hundred forty patients (group 1, n = 164; group 2, n = 119) were identified, with the majority of these admitted due to nonsteroidal anti-inflammatory drugs (NSAIDs) only. For CCCAs (NSAID-containing), the same patients were admitted repeatedly with a reduction from 31 to eight admissions (P = 0.005), following rescheduling. The total cost of CCCA admissions was reduced from AU$ 561 691 for group 1 to AU$ 261 764 for group 2 (P < 0.001).ConclusionsAustralian rescheduling of CCCAs in 2018 resulted in a reduction in hospital admissions and costs related to GI complications. The cost savings, even in a single hospital department, were substantial.© 2023 Royal Australasian College of Physicians.

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