Oh, that's correct, CT. 8 imodium/day is like the threshold that the gi doctors give for "don't go above this limit." (Adult limit from my gi docs and several places that I have read online). For fecal impaction, everyone is different. So you want to start small and make sure you can tolerate each additional pill for a few days before moving up (and only move up if you have to). You don't want to get impacted. My statement about using 8 was just to say: "I'm someone who is using 8/day because I need to. And my doctors feel this is safe for me, no side effects, no organ damage, etc. So do not be afraid of using that much imodium *if you and your doctor decide that's what's needed for you*." I suspect this dosage will be too much for most people.
I was very afraid to take more than 4 imodium/day early on, and I waited way too long and went through a lot of anxiety and pain about taking more. Even though that's what was needed. Even this week, after I used to take 5/day for 4 months with my loop ileostomy, I didn't want to take 8/day for fear of taking too much and getting impacted post-takedown. I now regret that anxiety because it cost me pain and too many of those "I'm not sure I'm cut out for a jpouch" episodes of exasperation.
So I'm just trying to convey that, if you need more imodium than the max 4 that the bottle tells you, you're in good company. And it's not like taking more than, say, aceteminophen, that could cause kidney damage, etc. Proceed conservatively, but if you have a very active intestine, don't be afraid to use the tools available to you instead of suffering. I hope I'm conveying my message correctly.