OK, back - sorry folks, I keep forgetting to check back
I'm using zeolite, on an Andy Cutler type protocol - two drops every four hours for 2.5 days, then 4.5 days off. My DS is 2.5, he tested 95%+ bad for antimony levels (and arsenic was high as well, which often comes along with antimony). We did pee tests before we started the zeolite, and then a pee test during a zeolite round - and we get 10x the amount of antimony out of him using the zeolite, which is HUGE for such a small amount of zeolite. Zeolite definitely doesn't mobilize for everyone, but it definitely is for us. I can tell we're still pulling antimony because every time we're on the zeolite, his magnesium needs increase (antimony messes with magnesium).
Cutler says to pull antimony with methylation supps - methyl b12, folate, etc - basically encouraging the body to rid itself of the antimony. But my DS tends to react badly to too many methylating supps, and the antimony gets things going a lot faster for us. I want the stuff out of him, so that we're not constantly fighting low magnesium symptoms (and they may have played a role in some of the starch/carb intolerance issues we were having as well).
ETA: We're also doing a lot of supporting supps - plenty of Bs with extra P5P(active B6), C, a little fermented CLO (and a lot through me), E, butter for K, lots of fish for omega 3s, mag, and milk thistle. (He swallows capsules now, thanks be...).