Chenodeoxycholic acid ( chenodiol )
Brand name:- Chenodal
Chenodeoxycholic acid (or Chenodiol) is an epimer of ursodeoxycholic acid (DB01586). Chenodeoxycholic acid is a bile acid naturally found in the body. It works by dissolving the cholesterol that makes gallstones and inhibiting production of cholesterol in the liver and absorption in the intestines, which helps to decrease the formation of gallstones. It can also reduce the amount of other bile acids that can be harmful to liver cells when levels are elevated.
Pharmacodynamic:-
It acts by reducing levels of cholesterol in the bile, helping gallstones that are made predominantly of cholesterol to dissolve. Chenodeoxycholic acid is ineffective with stones of a high calcium or bile acid content.
Mechanism of action:-
Chenodiol suppresses hepatic synthesis of both cholesterol and cholic acid, gradually replacing the latter and its metabolite, deoxycholic acid in an expanded bile acid pool. These actions contribute to biliary cholesterol desaturation and gradual dissolution of radiolucent cholesterol gallstones in the presence of a gall-bladder visualized by oral cholecystography. Bile acids may also bind the the bile acid receptor (FXR) which regulates the synthesis and transport of bile acids.
Used:-
Used to dissolve certain types of gallstones (non-calcified). Chenodiol is a bile acid. Chenodiol may be tried before surgery in patients that are at high risk of complications from gallstone surgery. If the gallstones do not dissolve, emergency surgery may still be needed.
SIDE EFFECTS:-
Diarrhea, nausea, or heartburn may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.
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