Though this thread is very old, I am also so here goes.
Regarding Paul's comment about Basic H (not 2H, I don't know about it) not being organic, we operated a certified organic livestock operation until my wife passed in Feb, 2017. We were certified by Ecocert Canada and my wife submitted sufficient evidence of the purity and organic status of Basic H that Ecocert approved it for worming our cattle.
I deeply appreciate this post because I am sure that is how my wife wormed our livestock guardian dogs and house cats. However, I did not know that and vets succeeded in pressuring me into worming them with allopathic pills. One of the dogs got very ill. I won't nor, thanks to this post, do I need to do that again. I have lots of Basic H left. (-:
BTW, insofar as Diatomaceous Earth is concerned, we were a distributor for PermaGuard for a time. I put together this page on DE that many said was the best single source for info on DE on the web. Here's the URL -
http://www.gaia-tree.ca/DE/PhoebeDE.html. Note that any links to Pinnacle Farms won't work.