Coroner's Finding: DAVIES Nicole Memory Faye
Deceased
Nicole Memory Faye Davies
Demographics
17y, female
Date of death
2000-04-04
Finding date
2002-05-23
Cause of death
mixed drug toxicity
AI-generated summary
Nicole Davies, 17, died from mixed drug toxicity after rapid methadone dose escalation during early maintenance therapy. She presented with clear signs of intoxication (drowsiness, slurred speech, incoherence) yet received her final methadone dose while already affected by previous methadone and other CNS depressants (doxepin, diazepam, fluoxetine). Critical failures included: inadequate investigation of her complex psychiatric history and previous Melbourne methadone treatment; escalating methadone by 35mg over 5 days (contrary to guidelines recommending 5-10mg increments every 4 days); misinterpreting toxicity symptoms as withdrawal and increasing doses accordingly; failing to recognise drug interactions (fluoxetine increases methadone levels unpredictably); and not insisting on hospital admission when she presented acutely intoxicated to the surgery. The pharmacist appropriately queried dosing but deferred to the prescriber. Better practice would have involved contacting previous providers, slower dose titration, recognising toxicity, withholding the final dose, and mandatory hospital supervision given her presentation and polypharmacy.
AI-generated summary and tagging — may contain inaccuracies; refer to original finding for legal purposes.
Error types
Contributing factors
- rapid escalation of methadone dose during induction phase
- failure to obtain previous psychiatric and methadone treatment history from Melbourne
- unrecognised or misinterpreted drug interactions between fluoxetine and methadone
- polypharmacy with CNS depressants (doxepin, diazepam, benzodiazepines)
- misinterpretation of toxicity symptoms as withdrawal symptoms
- administration of methadone dose to already intoxicated patient
- failure to insist on hospital admission when acutely intoxicated
- inadequate supervision at home with no clear written guidance on monitoring consciousness
- complex unaddressed psychiatric history (presumed schizophrenia)
Coroner's recommendations
- Dr T. should review his clinical approach to methadone maintenance treatment to ensure compliance with appropriate standards
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