cho·le·styr·a·mine 
(kō′lĭ-stîrə-mēn′, kō-lĕs′tə-rămēn)
(kō′lĭ-stîrə-mēn′, kō-lĕs′tə-rămēn)n.
A drug that binds to intestinal bile acids and promotes their excretion, used to lower serum cholesterol levels and to treat itching associated with partial biliary obstruction.
[CHOLE(STEROL) + STYR(ENE) + AMINE.]