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Transcutaneous electrical acupoint stimulation potentiates analgesic effect of morphine
Chun-Su Yuan1, Anoja S Attele, Lucy Dey
1Tang Center for Herbal Medicine Research, Department of Anesthesia & Critical Care, University of Chicago, Illinois 60637, USA.
Journal of Clinical Pharmacology
|August 7, 2002
Summary
Transcutaneous electrical acupoint stimulation (TEAS) effectively reduces pain. Combining TEAS with low-dose morphine offers superior pain relief compared to either treatment alone.
Area of Science:
- Neuroscience
- Pain Management
- Acupuncture Research
Background:
- Pain is a primary reason for seeking acupuncture.
- Transcutaneous electrical acupoint stimulation (TEAS) offers a needle-free alternative.
- The cold-pressor test is a validated model for studying pain induction.
Purpose of the Study:
- To evaluate the analgesic effects of TEAS.
- To compare TEAS alone, morphine alone, and their combination.
- To assess pain reduction during the cold-pressor test.
Main Methods:
- 20 healthy subjects participated in a controlled study.
- Electrical stimulation was applied to LI 4 and P 6 acupoints.
- Pain scores were recorded during the cold-pressor test under four conditions: saline, TEAS, morphine, and TEAS + morphine.
Main Results:
- Both TEAS alone and morphine alone produced statistically significant pain reduction (p < 0.01).
- The combination of TEAS and 0.05 mg/kg morphine showed significantly greater analgesia than TEAS alone (p < 0.01).
Conclusions:
- TEAS demonstrates efficacy in pain management.
- Combining TEAS with low-dose morphine enhances pain control.
- This combination holds promise for various clinical pain settings.