Have you read parasite Rex? It explains how parasites control the host. I kind of doubt if it is the probiotics and colostrum that are doing the constipating. Constipation is what parasites do to control the host, and prevent the host from eliminating eggs, when they are dying off. They "know" that if the host eliminates the eggs, the colony will have no change of surviving. That is why colonic irrigation, fiber, oxycleanse, anything to keep the guts moving is very important.
None the less, Bloodroot gave me radical runs at first, and it still makes me poop when I increase the dose. So I am curious. What is your genetic history? What are your symptoms? How long have you been suffering from the parasites? What have you done to get rid of and/or tame them?