Amanda Jane Harris, 36, was fatally stabbed by her intimate partner Daniel Eckersley on 7 July 2018 in Cranbourne North, Victoria. Eckersley was prescribed high-dose tramadol (700-800mg daily) for chronic pain over 22 months by his GP without documented substance abuse assessment, despite documented history of polysubstance dependence. When Eckersley ceased alcohol and cannabis use and was commenced on desvenlafaxine three days before the homicide, he developed acute psychosis likely related to tramadol withdrawal, drug interaction, or combination with recent substance cessation. He stabbed Ms Harris multiple times, set fire to the home, and was arrested. Two forensic psychiatrists concluded he was psychotic at the time. The coroner found the GP's prescribing of high-dose tramadol over 22 months without specialist referral, substance abuse assessment, or documented monitoring for dependence was suboptimal. Recommended improvements include substance abuse assessment before prescribing medications with abuse potential, specialist referrals for complex cases, and regular monitoring of long-term analgesic therapy.
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Specialties
general practicepain medicinepsychiatryorthopaedic surgery
chronic pain (knee injury)adjustment disorder with anxiety and depressionpsychosis (tramadol-induced or withdrawal-related)polysubstance abuse and dependenceopioid use disorder
Contributing factors
Intimate partner violence
Untreated psychosis likely tramadol-induced or withdrawal-related
High-dose tramadol prescribing without specialist oversight
Lack of substance abuse assessment despite documented polysubstance dependence history
Drug interaction between tramadol and newly commenced desvenlafaxine
Recent cessation of heavy alcohol and cannabis use
Inadequate mental health support and follow-up
No documented monitoring for tramadol abuse or dependence
Coroner's recommendations
Referrals to specialist clinicians such as pain management specialists and/or psychiatrists should be considered reasonable inclusions in the treatment plan when patients are prescribed long-term tramadol
Regular substance abuse assessments should be conducted when prescribing medications with abuse potential, especially over prolonged periods and in high doses, not predicated solely on current evidence of misuse
Careful and regular monitoring should be carried out when tramadol is required long-term to establish whether and to what extent ongoing treatment is necessary
Formal assessment of substance abuse history should be documented at initiation of prescribing medications with abuse potential, particularly in patients with known history of polysubstance dependence
Referral to alcohol and other drug (AOD) services should be considered for complex cases involving chronic pain, long-term analgesic use, past addiction history, and recent substance use
Referral to psychiatry should be considered for patients with long-standing musculoskeletal pain requiring long-term analgesic treatment and associated mental health or social problems
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