My presenting symptom was frequent batches of white granular type stuff, like sand, that would appear in my pajamas & bed every few nights. Two labs - a medical lab and a research lab - "ruled out" parasites or parasite eggs. Yet, the Rx Albendazole, an industrial strength Tapeworm killer, is causing me to expell all of this stuff over several days now. I don't know what to think. I'm glad it's going south, whatever it is.