Readiness and recovery : switching between methadone and buprenorphine/naloxone for the treatment of opioid use disorder : a 90 credit thesis submitted in partial fulfillment of the requirements for the degree of Master of Nursing at Massey University, Wellington, New Zealand
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2016
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Massey University
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Abstract
Opioid substitution treatment is an effective form of treatment for opioid use disorders. Long
acting opiates are used as part of treatment with methadone and buprenorphine/naloxone
(BUP/NX) most frequently prescribed. Current evidence suggests that BUP/NX is better than
no treatment, but that methadone is marginally more effective for retention in treatment.
Benefits of BUP/NX include greater ease in ceasing treatment and less use of illicit opiates
while in treatment as compared to methadone. As yet there is little research asking service
users about their experiences.
This project aims to understand citizen perspectives of what it was like to receive BUP/NX
for the treatment of opioid use disorder. A qualitative descriptive approach was used to
extract themes from semi-structured interviews of seven randomly selected participants. To be
selected, participants had a current diagnosis of opioid use disorder, and had been prescribed
BUP/NX during the course of their treatment. The project specifically sets out to consider
how citizens viewed BUP/NX as a treatment option for opioid use disorder.
Thematic analysis extracted four themes that were interpreted in terms of the harm
minimization and the recovery model. The four themes were: drivers for opioid substitution
treatment change; readiness for BUP/NX substitution treatment; absence of effect from
BUP/NX; and an increased sense of citizenship on BUP/NX. This study identified a number
of factors that impacted on the participants’ decision making when it came to switching
between methadone and BUP/NX for the treatment of their opioid use disorder. This thesis
discusses these factors and locates them within the current literature on the topic.
The thesis concludes by saying that methadone is most effective for those people who still
seek sedation and currently wish to continue using other opioids, and BUP/NX is most
effective for people who no longer wish to experience sedation, and see opioid abstinence as
an end point in their recovery. This thesis also concludes that as an individual’s treatment
expectations change, these changes are important to consider when determining medication
selection. Recommendations are offered, as is a treatment model, which is intended to help
with medication decision-making. Future research directions are also suggested.