Hi There. From doing some research on the internet having recently been diagnosed with BAM I found out that Questran (Colestyramine) is used to lower cholesterol in the blood. Lowering cholesterol helps decrease the risk for strokes and heart attacks.
Colestyramine may also be used to treat itching in people with too much bile acid caused by a certain type of liver/bile duct disease (partial biliary [wiki2="Intestinal-Obstruction"]obstruction[/wiki2]).
I hope this helps.
