I don't know if this is helpful but thought I should post that mrsD posted information about Benfotiamine on a thread called "~~SUPPLEMENTS~~~ for Peripheral Neuropathy:" in the subforum for PN Tips, Resources, Supplements & Other Treatments.

https://www.neurotalk.org/653193-post4.html

Note that it's from 2010 and also note that the Benfotiamine website address she has posted has since changed.

Benfotiamine : Frequently Asked Questions