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Updated: Jul 3, 2026

The Sciatic Nerve Cuffing Model of Neuropathic Pain in Mice
Published on: July 16, 2014
Lamotrigine for acute and chronic pain
1Churchill Hospital, Pain Research Unit, Old Road, Headington, Oxford, UK, OX3 7LJ. phil.wiffen@pru.ox.ac.uk
Lamotrigine is not recommended for neuropathic pain due to limited evidence of effectiveness. This review found no significant benefits, with a notable risk of skin rash, suggesting other treatments are more suitable.
Area of Science:
- Neurology
- Pain Management
- Pharmacology
Background:
- Anticonvulsant medications are utilized for neuropathic pain management.
- This review evaluates lamotrigine's efficacy in pain relief.
Purpose of the Study:
- To assess the analgesic efficacy and adverse effects of lamotrigine for acute and chronic pain.
- To determine if lamotrigine is a viable treatment option for various pain conditions.
Main Methods:
- Systematic review of Randomized Controlled Trials (RCTs) identified through MEDLINE, EMBASE, and Cochrane Library.
- Included studies involved adults (18+) with acute or chronic pain, assessing pain intensity using validated scales.
- Meta-analysis was performed using fixed or random effects models based on statistical heterogeneity; Number-Needed-to-Treat (NNT) and Number-Needed-to-Harm (NNH) were calculated.
Main Results:
- Seven RCTs involving 502 participants with neuropathic pain were included; no studies on acute pain were found.
- Conditions studied included central post-stroke pain, diabetic neuropathy, HIV-related neuropathy, and trigeminal neuralgia.
- A statistically significant result was observed in one subgroup for HIV-related neuropathy, but it was deemed unlikely to be clinically significant (NNT 4.3). Approximately 7% of participants reported skin rash.
Conclusions:
- Lamotrigine is unlikely to be beneficial for treating neuropathic pain based on current limited evidence.
- More effective treatments, including other anticonvulsants and antidepressants, are available.
- Lamotrigine does not currently hold a significant therapeutic role for neuropathic pain management.
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