May interfere w/ reabsorption of bile acid prep (eg, ursodeoxycholic & chenodeoxycholic acid). Effect may be attenuated by Al-containing antacids (eg, sucralfate hydrate, aldioxa); cholestyramine & colestimide. May elevate blood levels & possibly enhance effects of digoxin, dabigatran etexilate, methanesulfonate. May decrease blood levels & effects of midazolam.