Zetia is a medication that inhibits the absorption of dietary cholesterol in the small intestine. Its active ingredient, ezetimibe, belongs to the class of cholesterol absorption inhibitors. By binding to the niemann-pick c1-like 1 protein, it blocks the uptake of cholesterol and phytosterols from the intestinal lumen. This leads to a reduction in the amount of cholesterol delivered to the liver, prompting an increase in hepatic ldl receptor activity. The subsequent upregulation of ldl receptors enhances the clearance of low-density lipoprotein particles from the bloodstream. The primary therapeutic purpose of Zetia is to improve lipid control in patients with hypercholesterolemia or familial hypercholesterolemia. It is often used alongside statins to achieve additional ldl cholesterol lowering and to reduce cardiovascular risk. The pharmacological effect therefore stems from targeted inhibition of intestinal cholesterol uptake, which indirectly modifies hepatic lipid metabolism.

Zetia is a medication that lowers cholesterol by reducing the amount absorbed from the diet. It works by blocking a specific protein called npc1l1 in the small intestine that normally takes up dietary cholesterol. When this protein is inhibited less cholesterol enters the bloodstream. The liver then compensates by increasing the number of ldl receptors that clear cholesterol from the circulation. The combined effect of reduced absorption and enhanced clearance leads to a measurable decrease in circulating ldl cholesterol levels. This therapeutic action makes Zetia useful as an adjunct to a healthy diet and, when needed, to statin therapy for overall cardiovascular risk reduction.

Zetia is classified as an cholesterol absorption inhibitor used to treat hypercholesterolemia. Headache is the most commonly reported adverse effect. Digestive disturbances such as abdominal pain and diarrhea occur occasionally. Fatigue and muscle aches have been observed in clinical studies. Joint pain and flu-like symptoms are also reported in a minority of cases. These reactions are generally mild and do not require discontinuation of therapy.

Zetia may cause headache in some patients. Abdominal discomfort or pain is a reported reaction. Diarrhea can occur as a gastrointestinal response. Fatigue or unusual tiredness may be experienced. Joint aches or pain have been observed in clinical studies. Muscle pain or weakness can appear as a side effect. These reactions are generally mild and do not require treatment in most cases.