Double-blind trial of cholestyramine in post-vagotomy diarrhoea.

Abstract
The effect of cholestyramine in human post-vagotomy diarrhea was assessed under double-blind conditions. Cholestyramine produced a significant improvement in frequency, urgency and consistency of stool as well as episodic diarrhea. Fecal bile acid excretion was significantly higher in the post-vagotomy group when compared with normal controls. The effectiveness of cholestyramine was confirmed and the concept of a bile acid mediated etiology in post-vagotomy diarrhea was supported.