Coronial
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Finding into death of Melissa Jane May

Deceased

Melissa Jane May

Demographics

44y, female

Coroner

Coroner Rosemary Carlin

Date of death

2013-12-16

Finding date

2016-08-26

Cause of death

Combined drug toxicity (oxycodone, diazepam, and pregabalin)

AI-generated summary

Melissa May, a 44-year-old woman with chronic pain and opioid dependence, died from combined drug toxicity on 16 December 2013. She had been prescribed oxycodone, diazepam, and pregabalin by doctors at Rich River Health Group, with oxycodone dispensed by Rich River Pharmacy. Despite both doctors and pharmacists believing safeguards existed to prevent early dispensing and drug abuse, critical communication failures allowed Mrs May to access dangerous quantities of medication. A handwritten notation by her doctor not to dispense until 18 December was obliterated before presentation to the pharmacy, likely by Mrs May herself. The pharmacy dispensed all prescriptions without adequate verification, enabling her to obtain sufficient drugs to cause fatal overdose through rapid intravenous injection. The case demonstrates failures in coordination between prescribers and dispensers, inadequate record-keeping, and reliance on undocumented arrangements made years earlier.

AI-generated summary and tagging — may contain inaccuracies; refer to original finding for legal purposes. Report an inaccuracy.

Specialties

general practicepain medicinepharmacy

Error types

communicationsystemprocedural

Drugs involved

oxycodonediazepampregabalin

Clinical conditions

opioid dependencebenzodiazepine dependencechronic paindrug-induced respiratory depressiondrug toxicityopioid overdose

Contributing factors

  • Poor communication between prescribing doctors and dispensing pharmacist
  • Failure to maintain daily dispensing arrangement for opioid medication despite documented dependence
  • Dispensing of pregabalin without adequate safeguards despite known synergistic interaction with opioids and benzodiazepines
  • Inadequate record-keeping by pharmacy regarding safeguarding arrangements
  • Reliance on undocumented letter from 2008 regarding daily dispensing regime
  • Acceptance of altered prescription without verification
  • Dispensing of repeat prescriptions without adequate monitoring of intervals
  • Patient able to access multiple months of medication simultaneously
  • Prescription notation obliterated before presentation to pharmacy

Coroner's recommendations

  1. The Royal Australian College of General Practitioners and the Pharmaceutical Board of Australia should collaboratively consider how to incorporate the lessons of this case into future training and the design of future interventions to reduce pharmaceutical drug-related harms.
  2. The Royal Australian College of General Practitioners and the Pharmaceutical Board of Australia should collaboratively consider the need for development of a joint guideline in relation to communication between the professions to ensure the safe prescribing and dispensing of drugs of dependence, including methods of implementing daily dispensing, avoiding early dispensing and the provision of prospective prescriptions.
  3. The Royal Australian College of General Practitioners should consider the need for further education and training or assistance to rural general practitioners dealing with complex patients suffering chronic pain and prescription drug dependence.
Full text
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