Have you ever tried sennakot? I'm taking fiber con, sennakot, and lactulose now and things are going well.
Magnesium citrate is a liquid you can get OTC if things haven't moved in a while, but it will really clean you out. It tastes gross, but it works. I used to mix it with juice. I wish it still worked for me. It used to be my go-to.

I'm sorry you have to continue to worry about Pudge. I know it's hard