Bile acid sequestrants are used to reduce low density lipoprotein (LDL) cholesterol levels. After oral administration, they are not absorbed but bind to bile acids (which contains cholesterol) in the intestine and prevent their reabsorption into the body. The bound complex is insoluble and is excreted in the faeces. Decrease in bile acid leads to an increase in hepatic synthesis of bile acids from cholesterol. Depletion of cholesterol increases LDL receptor activity, therefore increases removal of LDL cholesterol from the blood.
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Source:drugs.com
Cholestyramine
Cholestyramine is used with diet changes (restriction of cholesterol and fat intake) to reduce the amount of cholesterol and certain fatty substances in your blood. Accumulation of cholesterol and fats along the walls of your arteries (a process known as atherosclerosis) decreases blood flow and, therefore, the oxygen supply to your heart, brain, and other parts of your body. Lowering your blood level of cholesterol and fats may help to prevent heart disease, angina (chest pain), strokes, and heart attacks.
Cholestyramine is used with diet changes (restriction of cholesterol and fat intake) to reduce the amount of cholesterol and certain fatty substances in your blood. Accumulation of cholesterol and fats along the walls of your arteries (a process known as atherosclerosis) decreases blood flow and, therefore, the oxygen supply to your heart, brain, and other parts of your body. Lowering your blood level of cholesterol and fats may help to prevent heart disease, angina (chest pain), strokes, and heart attacks.
Colesevelam is used in adults along with diet, weight loss, and exercise to reduce the amount of cholesterol and certain fatty substances in the blood alone or in combination with other cholesterol-lowering medications known as HMG-CoA reductase inhibitors (statins). Colesevelam is also used alone or in combination with HMG-CoA reductase inhibitors in certain boys and in girls, ages 10 to 17, with familial heterozygous hypercholesterolemia (an inherited condition in which cholesterol cannot be removed from the body normally) to decrease the amount of cholesterol and other fatty substances in the blood. Colesevelam is also used along with diet and exercise to control blood sugar levels in adults with type 2 diabetes (condition in which the body does not use insulin normally and therefore cannot control the amount of sugar in the blood). Colesevelam is in a class of medications called bile acid sequestrants. It works by binding bile acids in your intestines to form a product that is removed from the body.
Colestipol is used along with diet changes to decrease the amount of fatty substances such as low-density lipoprotein (LDL) cholesterol ('bad cholesterol') in certain people with high cholesterol. Colestipol is in a class of medications called bile acid sequestrants. It works by binding bile acids in your intestines to form a product that is removed from the body.
