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Fenofibrate: Uses, Dosage & Side Effects

Fenofibrate is a prescription medication used to lower elevated blood lipid levels, especially triglycerides. It is prescribed for lipid metabolism disorders.

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Things worth knowing about "Fenofibrate"

Fenofibrate is a prescription medication used to lower elevated blood lipid levels, especially triglycerides. It is prescribed for lipid metabolism disorders.

What is Fenofibrate?

Fenofibrate is a prescription drug belonging to the class of fibrates. It is used to treat elevated blood lipid levels – in particular high triglycerides and low HDL cholesterol (the so-called good cholesterol). Fenofibrate is commonly used alongside dietary changes and other lipid-lowering therapies to reduce cardiovascular risk.

Indications

Fenofibrate is indicated for:

Hypertriglyceridaemia: significantly elevated triglyceride levels in the blood
Mixed dyslipidaemia: a combination of elevated triglycerides, elevated LDL cholesterol, and low HDL cholesterol
As an add-on therapy to statins when triglyceride levels remain uncontrolled despite statin treatment

It is particularly used in patients with type 2 diabetes or metabolic syndrome, conditions frequently associated with lipid disorders.

Mechanism of Action

Fenofibrate acts as a PPAR-alpha agonist (peroxisome proliferator-activated receptor alpha). By activating this nuclear receptor in the liver, it triggers several lipid-lowering effects:

Increased oxidation (breakdown) of fatty acids in the liver
Reduced production of triglyceride-rich lipoproteins (VLDL)
Enhanced activity of lipoprotein lipase, an enzyme that breaks down triglycerides in the bloodstream
Increased HDL cholesterol levels through upregulation of apolipoprotein A-I and A-II production

The overall result is a significant reduction in triglycerides (by up to 50%) and a moderate increase in HDL cholesterol.

Dosage

Fenofibrate is available in various formulations and strengths (e.g., 100 mg, 145 mg, 160 mg, 200 mg, 267 mg). The recommended daily dose depends on the specific formulation and should always be taken as directed by a physician. Some preparations are taken once daily with a meal, while others are food-independent. Dose adjustment is required in patients with renal impairment.

Side Effects

Like all medications, fenofibrate can cause side effects. Common and clinically relevant side effects include:

Gastrointestinal complaints: nausea, abdominal pain, diarrhoea
Elevated liver enzymes: regular monitoring of liver function is recommended
Muscle pain (myopathy): in rare cases, this may progress to rhabdomyolysis (severe muscle breakdown), especially when combined with statins
Pancreatitis: inflammation of the pancreas (rare)
Gallstones: fenofibrate may promote gallstone formation
Photosensitivity reactions of the skin

Contraindications and Interactions

Fenofibrate must not be used in patients with:

Severe hepatic or renal impairment
Existing gallbladder disease
Known hypersensitivity to the active substance

Important drug interactions include:

Statins: increased risk of muscle damage (myopathy)
Anticoagulants (e.g., warfarin, phenprocoumon): fenofibrate may enhance anticoagulant effects; dose adjustment may be necessary
Ciclosporin: potential interactions requiring close monitoring

Treatment Context

Fenofibrate is used as part of a comprehensive treatment strategy to reduce cardiovascular risk. In addition to drug therapy, a low-fat diet, regular physical activity, weight reduction, and alcohol restriction are essential components of managing lipid disorders. Regular blood tests (lipid panel, liver function, kidney function) are recommended during therapy.

References

European Medicines Agency (EMA): Fenofibrate - Summary of Product Characteristics. Available at: www.ema.europa.eu
Mach F et al. - 2019 ESC/EAS Guidelines for the management of dyslipidaemias. European Heart Journal, 2020; 41(1): 111-188.
Staels B, Dallongeville J, Auwerx J et al. - Mechanism of action of fibrates on lipid and lipoprotein metabolism. Circulation, 1998; 98(19): 2088-2093.

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