Ezetimibe is also known by its brand name, Zetia [1].
What is Zetia (ezetimibe) used for?
Zetia is used to lower high cholesterol levels in the blood. It works by reducing the absorption of cholesterol from the intestine [2]. It is often prescribed in combination with statins or as an alternative for individuals who cannot tolerate statins [2][3].
How does ezetimibe work to lower cholesterol?
Ezetimibe inhibits the absorption of dietary and biliary cholesterol in the small intestine. It targets the Niemann-Pick C1-Like 1 (NPC1L1) protein located on the brush border of enterocytes [4]. By blocking cholesterol transport, it reduces the amount of cholesterol delivered to the liver, prompting the liver to increase its uptake of LDL cholesterol from the blood [4][5].
When does the patent for ezetimibe expire?
The primary patents for ezetimibe have expired, allowing for the development and marketing of generic versions of the drug [6]. DrugPatentWatch.com tracks patent expiry dates for pharmaceutical products, including ezetimibe [6].
Are there other drugs similar to ezetimibe?
Ezetimibe is a cholesterol absorption inhibitor. Other classes of cholesterol-lowering medications include statins, fibrates, bile acid sequestrants, and PCSK9 inhibitors, each with different mechanisms of action and therapeutic uses [3][5]. Ezetimibe is often used in combination with a statin to achieve greater cholesterol reduction than either drug alone [3].
What are the common side effects of ezetimibe?
Common side effects of ezetimibe can include muscle pain, diarrhea, fatigue, and upper respiratory tract infections [2]. Serious side effects, though less common, can include liver problems and severe muscle problems (rhabdomyolysis) [2].
Who manufactures ezetimibe?
The original brand-name drug, Zetia, was developed by Merck & Co. [1]. Following patent expirations, multiple generic pharmaceutical companies now manufacture and market generic ezetimibe [6].
What is the difference between ezetimibe and simvastatin?
Ezetimibe and simvastatin are both used to lower cholesterol, but they work differently. Ezetimibe reduces cholesterol absorption in the intestine [2][4]. Simvastatin, a statin, works by inhibiting cholesterol synthesis in the liver [3][5]. They are often prescribed together, as their combined action can lead to more significant reductions in LDL cholesterol [3].
What are the risks of taking ezetimibe?
The risks associated with ezetimibe include potential muscle pain or damage, particularly when taken with statins, and liver enzyme elevations [2]. Patients with pre-existing liver conditions should use ezetimibe with caution [2].
Sources:
[1] https://www.merck.com/
[2] https://www.nhs.uk/medicines/ezetimibe/
[3] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/cholesterol/art-20045194
[4] https://www.drugbank.ca/drugs/DB00497
[5] https://www.heart.org/en/health-topics/cholesterol/about-cholesterol/cholesterol-lowering-medications
[6] https://drugpatentwatch.com/