Eric, thanks for the advice. I have 25mg of Dmsa in my house- how do you break it up so that you have 12.5 mg. Also, do you take the additional supplements reccommends while chelating or on the off days? last question, do you take dmsa with food or on an empty stomach? Thanks for all your help. Also, what about modifilan? Will this at least chelate the lead? Thanks for all your help.