Chenodiol (chenodeoxycholic acid) for dissolution of gallstones: the National Cooperative Gallstone Study. A controlled trial of efficacy and safety.


A double-masked study was conducted to determine the efficacy and safety of randomly allocated chenodiol (chenodeoxycholic acid, 750 mg/d or 350 mg/d) or placebo administered for 2 years to 916 patients for dissolution of radiolucent gallstones. There was confirmed complete dissolution in 13.5% of patients (750 mg/d), 5.2% (375 mg/d), and 0.8% (placebo), p… (More)

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