Efficacy of topical diclofenac in the treatment of painful diabetic peripheral neuropathy: a randomized placebo-controlled trial.
Painful diabetic peripheral neuropathy is a common disorder that has largely been overlooked. Unfortunately, it has been poorly treated despite its high prevalence. Diclofenac cream (Voltaren) is an effective analgesic in this indication, but concerns regarding systemic absorption have prevented its widespread use. We undertook a randomized placebo-controlled trial