few discussion sites / articles.... http://neuropathyandhiv.blogspot.com/2011/10/qutenza-patches-for-neuropathy-pain.html http://clinicaltrialsfeeds.org/clinical-trials/results/term=Qutenza http://www.thepmd.com/neurogesx-reports-positive-phase-2-results-for-ngx-1998-for-treatment-of-postherpetic-neuralgia/article/216251/ good reading. cheers