My experience is that NCD gave me a major crisis at 3 drops X 3 a day - I can do 1 drop X 2 a day. Then after 6 weeks of use I got a major cough for 4 months, and my naturalpath said it was a liver cough, so ncd must have released a lot of something. I definately think NCD is a great thing to take before DMSA or ALA - if you can do 10 drops X 3 a day of NCD then you should be able to do DMSA/ALA/cilantro protocol to get the very last of the metals.
Definately take artichoke drops after meals to clean liver/support digestion and milk thistle drops before bed, or Waiora.com has a detox tea.
I take probiotics (no FOS) 20billion cells after breakfast and digestive enzyme with food (especially if you have gas/bloating etc). I think they say if you have heartburn/acid then you you need HCL Betaine. http://www.gianteagle.com/healthnotes/Supp/Betaine_HCl.htm You take 1 capsule after meals - if your stomach is not soar then take an additional capsule 500mg - you should take more until your stomach gets soar and then back down to the appropriate dose.
Be sure to take fiber 2X a day to mop up toxins in the colon. I am not 100% sure if metals are being released - the best thing to do is a challenge test at www.ncdtest.com and you will know for sure what is happening and you can be confident your doing the right thing.....