Same thing happened to me, I had not had stool in weeks, and when that stuff didn't work, I just pictured everything building up and backup up in my small intestines. I kept eating also, thinking I had to keep things moving.
For me, after two weeks, I tried 2 bottles of magnesium citrate, several different types of OTC laxatives, many colonics
and enemas, and still nothing. The enema and colonic
water even ran out pretty clear. It was raw garlic and onion several times a day with little else, for several days in a row that produced the parasites, after that it took a while for things to flow again.