Cannabis Use During Methadone Stabilization Did Not Worsen Treatment and May Have Eased Opiate Withdrawal
Cannabis use was common during methadone induction but dropped after dose stabilization, and pilot data suggested cannabis users experienced less opiate withdrawal during the stabilization process.
Quick Facts
What This Study Found
A retrospective chart analysis of 91 methadone maintenance patients examined cannabis use patterns during treatment. Cannabis use was high during methadone induction (the initial dose-stabilization period) and dropped significantly after stable dosing was achieved. History of cannabis use predicted cannabis use during treatment.
Critically, cannabis use during MMT did not negatively impact the methadone induction process (dose stabilization, treatment compliance, opiate abstinence). Pilot data suggested that patients who used cannabis during stabilization actually had lower objective ratings of opiate withdrawal symptoms.
Key Numbers
91 patients. Cannabis use: high during induction, dropped after stabilization. No negative impact on: dose stabilization, compliance, opiate abstinence. Pilot data: lower opiate withdrawal ratings in cannabis users during stabilization.
How They Did This
Retrospective chart analysis of 91 outpatient MMT records. Cannabis use patterns before and during treatment. Association with opiate abstinence, methadone dose stabilization, and treatment compliance. Objective withdrawal ratings.
Why This Research Matters
Many methadone clinics penalize or discharge patients for cannabis use, based on the assumption it impairs treatment. This study suggests the opposite: cannabis use during methadone stabilization was not harmful and may have reduced withdrawal symptoms. This has implications for treatment policies.
The Bigger Picture
This study contributed to the growing evidence that cannabis use during opioid agonist therapy may not be the clinical concern it is often treated as. Some methadone programs have since reconsidered strict cannabis policies, focusing instead on the primary goal of opioid abstinence.
What This Study Doesn't Tell Us
Retrospective chart review with inherent limitations. Small sample (91 patients). The withdrawal finding was described as "pilot data" requiring confirmation. Cannabis use was objective (urine testing) but patterns were inferred from testing schedules. Selection bias: patients who stayed in treatment long enough for analysis.
Questions This Raises
- ?Should methadone clinics change their cannabis policies based on this evidence?
- ?Does cannabis specifically reduce opiate withdrawal through cannabinoid-opioid interactions?
- ?Would prospective trials confirm the withdrawal benefit?
Trust & Context
- Key Stat:
- Cannabis use during methadone did not impair treatment and may have reduced withdrawal
- Evidence Grade:
- Retrospective chart analysis with pilot withdrawal data; preliminary evidence against cannabis harming MMT.
- Study Age:
- Published in 2013. The question of cannabis policies in opioid treatment has become increasingly debated.
- Original Title:
- Impact of cannabis use during stabilization on methadone maintenance treatment.
- Published In:
- The American journal on addictions, 22(4), 344-51 (2013)
- Database ID:
- RTHC-00731
Evidence Hierarchy
Looks back at existing records to find patterns.
What do these levels mean? →Frequently Asked Questions
Should methadone patients stop using cannabis?
This study suggests cannabis use during methadone treatment does not worsen outcomes. Cannabis use dropped naturally after methadone stabilization, and pilot data suggested it may have actually eased opiate withdrawal during the induction period. However, this is preliminary evidence and individual circumstances vary. The primary goal of MMT is opiate abstinence.
Why might cannabis help with opiate withdrawal?
The endocannabinoid and opioid systems interact extensively in the brain. Cannabis may ease some withdrawal symptoms like anxiety, insomnia, muscle pain, and nausea through its effects on cannabinoid receptors that overlap functionally with opioid receptors. However, this mechanism has not been rigorously tested in human studies.
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Cite This Study
https://rethinkthc.com/research/RTHC-00731APA
Scavone, Jillian L; Sterling, Robert C; Weinstein, Stephen P; Van Bockstaele, Elisabeth J. (2013). Impact of cannabis use during stabilization on methadone maintenance treatment.. The American journal on addictions, 22(4), 344-51. https://doi.org/10.1111/j.1521-0391.2013.12044.x
MLA
Scavone, Jillian L, et al. "Impact of cannabis use during stabilization on methadone maintenance treatment.." The American journal on addictions, 2013. https://doi.org/10.1111/j.1521-0391.2013.12044.x
RethinkTHC
RethinkTHC Research Database. "Impact of cannabis use during stabilization on methadone mai..." RTHC-00731. Retrieved from https://rethinkthc.com/research/scavone-2013-impact-of-cannabis-use
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.