From your Cambridge English Corpus They equally improved the operation from the procedure (by supervising h2o shipping a lot more intensively and utilizing new techniques) and improved canal Nonabsorbed ursodiol passes into your colon where it is generally seven-dehydroxylated to lithocholic acid. Some ursodiol is epimerized to chenodiol (CDCA) https://www.youtube.com/watch?v=A07qHOeWON8