Hi EnglishCountryDancer,

Your friends twitching could be from tremors or possibly spasms which is part of spasticity. I have provided two links, one on tremors and one on spasticity.

Maybe your friend will be able to relate to one or the other.

http://www.nationalmssociety.org/Sou...Spasticity.asp

http://www.nationalmssociety.org/Sourcebook-Tremor.asp

I don't have any info on copper.