Jarred Younger, Noorulain Noor, Rebecca McCue, Sean Mackey
https://onlinelibrary.wiley.com/doi/epdf/10.1002/art.37734
Conclusion: The preliminary evidence continues to show that low-dose naltrexone has a specific and clinically beneficial impact on fibromyalgia pain. The medication is widely available, inexpensive, safe, and well-tolerated. Parallel-group randomized controlled trials are needed to fully determine the efficacy of the medication.