First off WHY is your neuro asking you to do the research? He's the one who has the better/best access to papers and other info.

I did do a search for 'toxic neuropathy' and found three sources that mite fill the bill tho.... Then you can go on from there?

http://www.neurology.org/cgi/content/abstract/66/3/324

http://www.emedicine.com/NEURO/topic378.htm

http://www.neuropathy.org/site/PageS...ame=Type_Toxic

Happy reading? As a lab tech you will probably be able to zero in on the problem toxins...
That this neuro is saying 'street drugs' tho...that doesn't exactly spark trust and inspiration in my mind or heart tho in him....You know what I mean.
Good luck and keep us all informed - j