Ezetimibe (8 brand names, 1 dosage form, 1 route)
Available dosage forms: TABLET.
Routes of administration: ORAL.
Brand Names
- EZETIMIBE
- EZETIMIBE AND SIMVASTATIN
- LIPTRUZET
- LYPQOZET
- NEXLIZET
- ROSZET
- VYTORIN
- ZETIA
Indications and Usage
Ezetimibe tablets are indicated: In combination with a statin, or alone when additional low-density lipoprotein cholesterol (LDL-C) lowering therapy is not possible, as an adjunct to diet to reduce elevated LDL-C in adults with primary hyperlipidemia, including heterozygous familial hypercholesterolemia (HeFH). In combination with a statin as an adjunct to diet to reduce elevated LDL-C in pediatric patients 10 years of age and older with HeFH. In combination with fenofibrate as an adjunct to diet to reduce elevated LDL-C in adults with mixed hyperlipidemia. In combination with a statin, and other LDL-C lowering therapies, to reduce elevated LDL-C levels in adults and in pediatric patients 10 years of age and older with homozygous familial hypercholesterolemia (HoFH). As an adjunct to diet for the reduction of elevated sitosterol and campesterol levels in adults and in pediatric patients 9 years of age and older with homozygous familial sitosterolemia. When ezetimibe tablets are used in combination with a statin, fenofibrate, or other LDL-C lowering therapies, refer to the Prescribing Information of these products for information on the safe and effective use.
Dosage and Administration
The recommended dose of ezetimibe tablets is 10 mg orally once daily, administered with or without food. If as dose is missed, take the missed dose as soon as possible. Do not double the next dose. Assess LDL-C when clinically appropriate, as early as 4 weeks after initiating ezetimibe tablets. Administer ezetimibe tablets at least 2 hours before or 4 hours after administration of a bile acid sequestrant [see Drug Interactions (7)].
Contraindications
Ezetimibe tablets are contraindicated in patients with a known hypersensitivity to ezetimibe or any of the excipients in ezetimibe tablets. Hypersensitivity reactions including anaphylaxis, angioedema, rash, and urticaria have been reported [see Adverse Reactions (6.2)]. When used in combination with a statin, fenofibrate, or other LDL-C lowering therapy, ezetimibe tablets are contraindicated in patients for whom a statin, fenofibrate, or other LDL-C lowering therapy are contraindicated. Refer to the Prescribing Information of these products for a list of their contraindications [see Warnings and Precautions (5.1)].
Adverse Reactions
The following serious adverse reactions are discussed in greater detail in other sections of the label: Liver enzyme abnormalities [see Warnings and Precautions (5.2)] Rhabdomyolysis and myopathy [see Warnings and Precautions (5.3)]
Drug Interactions
Table 3 includes a list of drugs with clinically important drug interactions when administered concomitantly with ezetimibe and instructions for preventing or managing them. Table 3: Clinically Important Drug Interactions with Ezetimibe Cyclosporine Clinical Impact: Concomitant use of ezetimibe and cyclosporine increases ezetimibe and cyclosporine concentrations. The degree of increase in ezetimibe exposure may be greater in patients with severe renal insufficiency [see Clinical Pharmacology (12.3)]. Intervention: Monitor cyclosporine concentrations in patients receiving ezetimibe and cyclosporine. In patients treated with cyclosporine, weigh the potential effects of the increased exposure to ezetimibe from concomitant use against the benefits of alterations in lipid levels provided by ezetimibe. Fibrates Clinical Impact: Both fenofibrate and ezetimibe may increase cholesterol excretion into the bile, leading to cholelithiasis. Co-administration of ezetimibe with fibrates other than fenofibrate is not recommended [see Adverse Reactions (6.1)]. Intervention: If cholelithiasis is suspected in a patient receiving ezetimibe and fenofibrate, gallbladder studies are indicated, and alternative lipid-lowering therapy should be considered. Bile Acid Sequestrants Clinical Impact: Concomitant cholestyramine administration decreased the mean exposure of total ezetimibe. This may result in a reduction of efficacy [see Clinical Pharmacology (12.3)]. Intervention: In patients taking a bile acid sequestrant, administer ezetimibe at least 2 hours before or 4 hours after the bile acid sequestrant [see Dosage and Administration (2)].
Mechanism of Action
Ezetimibe reduces blood cholesterol by inhibiting the absorption of cholesterol by the small intestine. The molecular target of ezetimibe has been shown to be the sterol transporter, Niemann-Pick C1-Like 1 (NPC1L1), which is involved in the intestinal uptake of cholesterol and phytosterols. Ezetimibe localizes at the brush border of the small intestine and inhibits the absorption of cholesterol, leading to a decrease in the delivery of intestinal cholesterol to the liver. This causes a reduction of hepatic cholesterol stores and an increase in LDL receptors, resulting in clearance of cholesterol from the blood.
Overdosage
In the event of overdose, consider contacting the Poison Help line (1-800-222-1222) or a medical toxicologist for additional overdosage management recommendations.