Hey Franklin, I just came across your post & figured id post a reply even tho it is quiet dated. I think it may help others anyways.
I have been on and off Dr Shulze Intestinal Formula for many years now with no complications ever coming off of it.
I don't think my digestive issues are as severe as some peoples are, I simply only take it when I need it. Intestinal Formula is one I believe you can continuously use for life if you really wanted to, all the ingredients inside of them are all 100% natural.
Some people take both intestinal formulas 1 & 2 together as do I, you can find great deals on them at http://www.intestinalformula.com which is where Ive been ordering mine for the last few years or so.