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Multiple Choice

Ezetimibe reduces which lipid parameter most directly?

Ezetimibe acts by blocking the absorption of cholesterol in the intestine, which directly reduces the amount of cholesterol delivered to the liver. With less hepatic cholesterol available, the liver upregulates LDL receptors and clears more LDL particles from the blood, leading to a decrease in circulating LDL-C. This mechanism makes LDL-C the lipid parameter most directly affected. The drug has only modest effects on triglycerides and little impact on HDL, and any change in total cholesterol largely reflects the drop in LDL-C rather than a primary action on total cholesterol.

Ezetimibe acts by blocking the absorption of cholesterol in the intestine, which directly reduces the amount of cholesterol delivered to the liver. With less hepatic cholesterol available, the liver upregulates LDL receptors and clears more LDL particles from the blood, leading to a decrease in circulating LDL-C. This mechanism makes LDL-C the lipid parameter most directly affected.

The drug has only modest effects on triglycerides and little impact on HDL, and any change in total cholesterol largely reflects the drop in LDL-C rather than a primary action on total cholesterol.