A trial of cholestyramine in preference to a SeCHAT scan caused cessation of diarrhoea on one sachet per day. However, his abdominal bloating continued unabated and he found the treatment unpalatable.

Colestyramine, the most commonly used BAS, is often poorly tolerated due to side effects including nausea, vomiting, flatulence and abdominal pain. Colesevelam, has recently been advocated, as a ...