You might be better off with DMSA. DMPS is harder on your organs. I don't if anyone else has, but I have done both DMPS and DMSA. For me, DMSA seems to be less harsh and with liver problems, it has made chelation easier. I just found this out...I was struggling with the DMPS I had on hand, even cut the dose down to half and still was having such side effects that it was hard to function towards the end of the first day of chelating. However, when I switched to the same dose (25 mgs) DMSA, there was a HUGE noticeable tolerability increase. I am now on my 2nd day of DMSA only and only feel slight side effects, just a little tired, but not much else.

Hope this helps.