PainRelief.com: What are the main findings?
Response: In mice, a single dose of CBD-IN provided rapid and complete relief from nerve injury-induced chronic pain within 30 minutes, restoring normal pain sensitivity without affecting movement, memory, or normal touch sensation. Imaging studies showed that CBD-IN calms overactive neural circuits in pain-processing regions of the spinal cord, thalamus, and sensory cortex—without affecting healthy neurons. Interestingly, the effect did not involve the typical cannabinoid receptors targeted by THC, the major psychoactive component of cannabis, suggesting a new mechanism by which CBD can quiet neural overactivity without producing a “high.”
PainRelief.com: What should readers take away from your report?
Response: This study shows that improving how CBD is delivered to the brain can dramatically enhance its pain-relieving effects while avoiding major side effects. The CBD-IN formulation provides a simple and safe strategy that could pave the way for fast-acting, non-addictive treatments for chronic pain.
PainRelief.com: What recommendations do you have for future research as a result of this study?
Response: We plan to explore exactly how CBD suppresses overactive nerve cells and whether similar nano-delivery methods could be applied to other cannabis-derived compounds. Our long-term goal is to develop safer, more effective cannabinoid-based therapies for chronic pain and related brain disorders.
PainRelief.com: Is there anything else you would like to add? Any disclosures?
Response: This work was supported by the National Institutes of Health (NIH) grant R01AT010779 to Dr. Zhigang He (Harvard Medical School) and Dr. Kuan Hong Wang (University of Rochester), and by the Del Monte Institute for Neuroscience at the University of Rochester.
The University of Rochester has filed a U.S. Provisional Patent (No. 63/662,516) and an International Patent Application (PCT/US25/34093) titled “Cannabinoid Nano-Micelles and Methods of Use Thereof,” with Dr. Kuan Hong Wang, Dr. Jingyu Feng, and Dr. Zhigang He listed as co-inventors.
Citation:
Jingyu Feng, Jessica Page, Leeyup Chung, Zhigang He, Kuan Hong Wang,
Rapid suppression of neuropathic pain and somatosensory hyperactivity by nano-formulated cannabidiol, Cell Chemical Biology, 2025.
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Last Updated on November 13, 2025 by PainRelief.com