Cholestyramine
"After removing a prolific stone producing gallbladder that was causing biliary blockages, anything I ate would basically go right through, particularly the first meal of the day. My gastro doc prescribed the Cholestryamine and bingo problem resolved. I take it every evening around 9 or 10PM, have normal stools the next day and my first meal stays put along with everything else I eat. It will not dissolve and is like drinking sand, but for me it (Prevalite) goes down easier with a glass of apple cider (not juice). The generic version made by Sandoz I find is easier to take in plain water. As a bonus this drug also reduces my cholesterol."