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Why Australia decided to make all codeine products prescription only

The recent decision in Australia to make codeine-containing medications prescription only from 2018 (The Pharmaceutical Journal online, 23 December 2016) was reported to have been met with disappointment from the Pharmaceutical Society of Australia.

As part of a pattern of increases in pharmaceutical opioid consumption and dependence reported in the western world, addiction services in Australasia are reporting increasing numbers of people presenting whose opioid dependence has developed with over-the-counter (OTC) opioids alone.

People who are dependent upon OTC opioids are not necessarily readily identified as people who might have a substance misuse problem, may describe their development of addiction as ‘accidental’, and often do not see addiction treatment as appropriate for them. There is limited data available on the prevalence of OTC opioid dependence. However, a recent, small study in France reported that in a sample of people purchasing OTC codeine (n=118), around 20% met diagnostic criteria for opioid dependence[1].

The harms experienced by people with OTC opioid dependence are related to the need over time for increased doses of opioid to avoid withdrawal, inevitably resulting in the consumption of excessive doses of both codeine and the co-formulated agent (paracetamol or ibuprofen). Significant increases in presentations to hospital for acute severe liver failure associated with paracetamol and codeine products in the United States have been linked to opioid misuse and dependence[2], and in Australasia admissions to hospital for gastric haemorrhage, renal tubular acidosis and opioid overdose were reported in a case series of people presenting to addiction treatment[3].

In the Australasian study, the average daily dose of ibuprofen/codeine product consumed by those who had developed dependence ranged from 49 to 65 tablets per day. A report prepared for the Therapeutic Goods Administration (the authority in Australia responsible for regulating medicines, medical devices, blood, and tissues) stated that over 100 deaths related to the misuse of combination codeine preparations had been recorded in Australia by 2016[4].

If one were to view the rescheduling of codeine products through the same harm reduction lens with which illicit opioid dependence is approached and managed, then the decision in Australia might seem entirely rational. Any decision to change the availability of OTC codeine should ensure in parallel that access to adequate pain relief is possible in a timely, affordable and appropriate manner through prescription or proven non-pharmacological interventions for the community.

Carina Walters

PhD candidate

School of Pharmacy

University of Auckland

New Zealand

 

Susanna Galea

Consultant psychiatrist

Addiction specialist

Clinical director

Community alcohol and drug services

Auckland, New Zealand

Citation: Clinical Pharmacist DOI: 10.1211/CP.2017.20202178

Readers' comments (1)

  • Thank you Carina for this. I agree it is a rational decision.
    Please see link below to my article on what Canada should do with OTC codeine.

    https://www.ncbi.nlm.nih.gov/pubmed/?term=codeine+mackinnon

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