<prompt> Cholelithiasis and choledocholithiasis is caused by?ClofibrateChloramphenicolCotrimaxozoleNS AIDS  <response>: ANSWER: A ClofibrateREF: Robbins 8th ed CH: 8Drugs causing cholelithiasis and choledocholithiasis:Clofibrates: Clofibrate, used to lower blood cholesterol, increases hepatic HMG-CoA reductase and decreases conversion of cholesterol to bile acids by reducing cholesterol 7-a-hydroxylase activity. The net result of these influences is excess biliary secretion of cholesterolEstrogen and OOPSSomatostatin analogues appear to predispose to gallstones by decreasing gallbladder emptying.Ampicillin 