Masui. The Japanese journal of anesthesiology
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Multicenter Study
[Long-term efficacy and safety of pregabalin in patients with postherpetic neuralgia: results of a 52-week, open-label, flexible-dose study].
The efficacy of pregabalin was demonstrated in a randomized double-blind placebo-controlled 13-week trial in 371 Japanese patients with postherpetic neuralgia (PHN). In this study, we evaluated the long-term efficacy and safety of pregabalin for relief of PHN. ⋯ These results suggest that long-term treatment of pregabalin may be beneficial in patients with PHN.