I want to do work on Controlled Drug Delivery system for Gall Bladder Stone.
The system will comprise of Polymer encapsulated drug.
I want to know whether such medicine is available for Gall Bladder Stone problem?

Gallstone - Wikipedia, the free encyclopedia states that the only drug related treatment used is ursodeoxycholic acid, which is very expensive and needs to be taken repeatedly otherwise the stones can reoccur.

What drug were you thinking of using?