I've heard of Primal Defense and have seen it sold- but was always caught up using other things so never tried it yet.
I recall when I first started reading Curezone that some who visited this forum were using it at the time with luck.
If you got out stuff from it already- then it is working!
Keep using it for as long as they say- and then do a Liver Flush afterwards to get any outlying liverfluke that escaped to the liver area from the intestinal tract.
Also make sure you are doing Colon Cleanses throughout this time- or are at least having 2-3 good bowel movements a day to flush out the toxins.
Let us know how it is working- cuz it may be something many of us can try here who've never used it!