A 12-month study of 249 patients with neuropathic pain symptoms from
previous herpes zoster infection suggests that long-term treatment with
a 5% lidocaine medicated plaster may provide substantial and maintained
reductions in pain intensity and that it is continuously well tolerated.
These findings support the use of the 5% lidocaine medicated plaster
as one of the first-line therapies in this population. Hans G, Sabatowski
R, Binder A, et al. Efficacy and tolerability of a 5% lidocaine
medicated plaster for the topical treatment of post-herpetic neuralgia:
results of a long-term study. Current Medical Research &
Opinion. 25(5):1295-305, 2009 May.