We know that, the compound, ursodeoxycholic acid (UDCA, see structure), is already used to lower cholesterol and help dissolve gallstones,
and it's a key ingredient in many traditional Chinese medicines, which
use bear bile. According to the latest research from Imperial College
London it might also be able to treat abnormal heart rhythm, or
arrhythmia, in fetuses and heart attack victims.
“These findings are exciting because the treatments we have now are largely ineffective at preventing arrhythmia in patients who develop an abnormal heart rhythm after a heart attack,” said Dr. Julia Gorelik...........
Ref : http://www3.imperial.ac.uk/newsandeventspggrp/imperialcollege/newssummary/news_2-8-2011-10-25-30