Cholestyramine
"I've been having troubles with ibs-d symptoms for the last 10-12 years of my life (I'm only 22) about 2 years ago after I had my appendix removed it started becoming worse so I go back to my doctor for them to tell me I have gallstones a year later and my life has become extremely unbearable I can't eat, drink, or anything with out having to go to the bathroom almost immediately after. I believe I may also be lactose intolerant. But about a month ago I went to see my doctor who gave me this medicine and told me to take it 3x a day either an hour before my meal or 2 hours after. This is difficult because I also have to take a thyroid pill on an empty stomach. So most of my day I'm either waiting around to eat or to take my medicine."