Systematic review found medical cannabis shows promise for fibromyalgia pain but evidence gaps remain
A systematic review of 22 studies found medical cannabis may be safe and effective for fibromyalgia pain, with THC/CBD ratio determining effects on different symptoms, but dosing and long-term data are lacking.
Quick Facts
What This Study Found
Across 22 studies, medical cannabis (including nabilone, dronabinol, and various THC/CBD ratios) showed analgesic and anti-inflammatory effects in fibromyalgia patients. The THC-to-CBD ratio influenced which symptoms improved most. Studies used products including nabilone, dronabinol, Bedrocan (22.4mg THC), Bediol (13.4mg THC + 17.8mg CBD), and Bedrolite (18.4mg CBD).
Key Numbers
22 articles included. Formulations studied: nabilone, dronabinol, Bedrocan (22.4mg THC, <1mg CBD), Bediol (13.4mg THC, 17.8mg CBD), Bedrolite (18.4mg CBD, <1mg THC). THC/CBD ratio influenced symptom-specific effects.
How They Did This
Systematic review following PRISMA guidelines. Searched PubMed, MEDLINE, PubMed Central, and Google Scholar. 22 articles met inclusion criteria after quality assessment. Analyzed the role of cannabis in fibromyalgia treatment across different cannabinoid formulations.
Why This Research Matters
Fibromyalgia affects millions and current FDA-approved treatments have limited effectiveness. Cannabis represents a potential alternative, particularly as the opioid crisis makes non-opioid pain options increasingly important.
The Bigger Picture
The finding that different THC/CBD ratios affect different fibromyalgia symptoms suggests that a one-size-fits-all approach to medical cannabis for fibromyalgia is unlikely to work. Personalized formulation selection may be key to optimizing outcomes.
What This Study Doesn't Tell Us
Heterogeneous study designs across the 22 included studies. Limited data on optimal dosing, treatment duration, adverse effects, and long-term outcomes. Many studies were small or observational.
Questions This Raises
- ?What is the optimal THC/CBD ratio for different fibromyalgia symptoms?
- ?What are the long-term effects and dependence risks?
- ?How does medical cannabis compare to approved fibromyalgia medications in head-to-head trials?
Trust & Context
- Key Stat:
- 22 studies reviewed across multiple cannabinoid formulations
- Evidence Grade:
- Systematic review with PRISMA methodology, but underlying studies were heterogeneous and often small.
- Study Age:
- 2021 systematic review.
- Original Title:
- A Systematic Review of Fibromyalgia and Recent Advancements in Treatment: Is Medicinal Cannabis a New Hope?
- Published In:
- Cureus, 13(8), e17332 (2021)
- Authors:
- Khurshid, Hajra, Qureshi, Israa A, Jahan, Nasrin, Went, Terry R, Sultan, Waleed, Sapkota, Alisha, Alfonso, Michael
- Database ID:
- RTHC-03243
Evidence Hierarchy
Analyzes all available research on a topic using a structured method.
What do these levels mean? →Frequently Asked Questions
Does medical cannabis work for fibromyalgia?
The reviewed evidence suggests it may help with pain and other symptoms, but the evidence base has significant gaps. Different formulations (varying THC/CBD ratios) appear to affect different symptoms.
Which cannabis formulation is best for fibromyalgia?
The review found that the THC/CBD ratio matters, but could not identify a single optimal formulation. Products ranged from THC-dominant to CBD-dominant, each showing different symptom-specific effects.
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Cite This Study
https://rethinkthc.com/research/RTHC-03243APA
Khurshid, Hajra; Qureshi, Israa A; Jahan, Nasrin; Went, Terry R; Sultan, Waleed; Sapkota, Alisha; Alfonso, Michael. (2021). A Systematic Review of Fibromyalgia and Recent Advancements in Treatment: Is Medicinal Cannabis a New Hope?. Cureus, 13(8), e17332. https://doi.org/10.7759/cureus.17332
MLA
Khurshid, Hajra, et al. "A Systematic Review of Fibromyalgia and Recent Advancements in Treatment: Is Medicinal Cannabis a New Hope?." Cureus, 2021. https://doi.org/10.7759/cureus.17332
RethinkTHC
RethinkTHC Research Database. "A Systematic Review of Fibromyalgia and Recent Advancements ..." RTHC-03243. Retrieved from https://rethinkthc.com/research/khurshid-2021-a-systematic-review-of
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.