Bernades P, Bertrand L, Bouvry M, Colin R, Geffroy Y, Hecht Y, Klepping C, Lambert R, Levy V G, Michel H, Paliard P, Paris J, Quinton A
Nouv Presse Med. 1982 Feb 20;11(8):587-9.
A double-blind clinical trial comparing ursodesoxycholic acid and chenodesoxycholic acid in patients with cholesterol stones in the gall-bladder showed that ursodesoxycholic acid was superior to the older drug not so much in percentage of biliary calculi dissolved but in dosage reduction (50%) and improved clinical and biological tolerance.