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Updated: Aug 11, 2026

Subcutaneous Trigeminal Nerve Field Stimulation for Refractory Facial Pain
Published on: May 10, 2017
Comparison of L-baclofen and racemic baclofen in trigeminal neuralgia
1Department of Neurology, University of Pittsburgh School of Medicine, PA 15261.
Abstract:
L-Baclofen was compared with racemic baclofen (Lioresal) in a double-blind crossover trial in 15 patients with typical trigeminal neuralgia. L-Baclofen was more effective than five times as much racemic baclofen in nine patients. Six of these nine patients have continued pain-free on L-baclofen for 4 to 17 months (mean, 10 months). L-Baclofen was much better tolerated than racemic baclofen. Our results suggest that L-baclofen represents a significant improvement over racemic baclofen in the treatment of trigeminal neuralgia, and support our laboratory observations indicating that D-baclofen antagonizes the action of L-baclofen.
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