You may have already tried Metamucil/psyllium husk but I used to take Imodium and ran into the same problem of finding a reasonable price for Imodium. I switched to Metamucil only and it has been mostly a good thing for me once my body adapted to it and got past the bloating stage of adjustment. That said, I've seen generic loperamide (Imodium) on Amazon occasionally at a pretty reasonable price.