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Pronunciation |
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(fen
oh FYE
brate) |
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U.S. Brand
Names |
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TriCor™ |
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Generic
Available |
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No |
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Canadian Brand
Names |
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Apo®-Fenofibrate |
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Synonyms |
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Procetofene; Proctofene |
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Pharmacological Index |
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Antilipemic Agent (Fibric Acid) |
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Use |
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Adjunct to dietary therapy for the treatment of adults with very high
elevations of serum triglyceride levels (types IV and V hyperlipidemia) who are
at risk of pancreatitis and who do not respond adequately to a determined
dietary effort; its efficacy can be enhanced by combination with other
hypolipidemic agents that have a different mechanism of action; safety and
efficacy may be greater than that of clofibrate; adjunct to dietary therapy for
the reduction of low density lipoprotein cholesterol (LDL-C), total cholesterol
(total-C), triglycerides, and apolipoprotein B (apo B) in adult patients with
primary hypercholesterolemia or mixed dyslipidemia (Fredrickson types IIa and
IIb) |
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Pregnancy Risk
Factor |
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C |
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Pregnancy/Breast-Feeding
Implications |
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Although teratogenicity and mutagenicity tests in animals have been negative,
significant risk has been identified with clofibrate, an agent similar in action
to fenofibrate. Use should be avoided, if possible, in pregnant women since the
neonatal glucuronide conjugation pathways are immature. |
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Contraindications |
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Hypersensitivity to fenofibrate or any component hepatic or severe renal
dysfunction including primary biliary cirrhosis and unexplained persistent liver
function abnormalities; pre-existing gallbladder disease |
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Warnings/Precautions |
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Hepatic transaminases can significantly elevate (dose-related). Regular
monitoring of liver function tests is required. May cause cholelithiasis.
Adjustments in warfarin therapy may be required with concurrent use. Use caution
when combining fenofibrate with HMG-CoA reductase inhibitors (may lead to
myopathy, rhabdomyolysis). The effect of CAD morbidity and mortality has not
been established. Therapy should be withdrawn if an adequate response is not
obtained after 2 months of therapy at the maximal daily dose (201 mg). Rare
hypersensitivity reactions may occur. Dose adjustment is required for renal
impairment and elderly patients. Safety and efficacy in children have not been
established. |
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Adverse
Reactions |
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>10%: Miscellaneous: Infection (18%)
1% to 10%:
Cardiovascular: Arrhythmia (1%, equal to placebo)
Central nervous system: Pain (8%), headache (5%), fatigue (5%), dizziness
(2%)
Dermatologic: Rash (6%), pruritus (3%)
Endocrine & metabolic: Decreased libido (2%)
Hepatic: Increased transaminases (6.3%)
Gastrointestinal: Nausea/vomiting (4%), abdominal pain (3%), constipation
(3%), flatulence (3%), eructation (1%), diarrhea
Ocular: Eye irritation (2%)
Miscellaneous: Flu-like syndrome (5%)
<1% (Limited to important or life-threatening symptoms - with probable
causal relationship): Hepatitis, cholelithiasis, cholecystitis, hepatomegaly,
myalgia, myasthenia, rhabdomyolysis, photosensitivity, eczema, allergic
pulmonary alveolitis, insomnia, hives, bronchospasm, lichenoid photodermatitis,
alopecia, joint pain, myopathy, impotence |
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Overdosage/Toxicology |
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Symptoms of overdose include nausea, vomiting, diarrhea, and GI distress;
treatment is supportive |
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Drug
Interactions |
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Chlorpropamide: May increase risk of hypoglycemia.
Furosemide: Increased blood levels of both in hypoalbuminemia.
HMG-CoA reductase inhibitors (atorvastatin, cerivastatin, fluvastatin,
lovastatin, pravastatin, simvastatin) may increase the risk of myopathy and
rhabdomyolysis. The manufacturer warns against concomitant use. However,
combination therapy with statins has been used in some patients with resistant
hyperlipidemias (with great caution).
Rifampin: Decreased fenofibrate blood levels.
Warfarin: Increased hypoprothrombinemic response; monitor INRs closely when
fenofibrate is initiated or discontinued. |
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Mechanism of
Action |
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Fenofibric acid is believed to increase VLDL catabolism by enhancing the
synthesis of lipoprotein lipase; as a result of a decrease in VLDL levels, total
plasma triglycerides are reduced by 30% to 60%; modest increase in HDL occurs in
some hypertriglyceridemic patients |
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Pharmacodynamics/Kinetics |
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Absorption: 60% to 90% when given with meals
Distribution: Distributes well to most tissues except brain or eye;
concentrates in liver, kidneys, and gut
Protein binding: >99%
Metabolism: Metabolized to its active form, fenofibric acid, by tissue and
plasma esterases; then undergoes inactivation by glucuronidation in the liver or
kidneys
Half-life, elimination: 21 hours (30 hours in elderly, 44-54 hours in hepatic
impairment)
Time to peak: 4-6 hours
Elimination: 60% to 93% excreted in metabolized form; 5% to 25% excreted
fecally; hemodialysis has no effect on removal of fenofibric acid from the
plasma |
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Usual Dosage |
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Adults: Initial: 67 mg/day, up to 3 capsules (201 mg) |
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Monitoring
Parameters |
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Total serum cholesterol and triglyceride concentration and CLDL, LDL, and HDL
levels should be measured periodically; if only marginal changes are noted in
6-8 weeks, the drug should be discontinued; serum transaminases should be
measured every 3 months; if ALT values increase >100 units/L, therapy should
be discontinued. Monitor LFTs prior to initiation, at 6 and 12 weeks after
initiation of first dose, then periodically thereafter. |
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Cardiovascular
Considerations |
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Selection of lipid-lowering therapy should be based on the patient's lipid
profile, concomitant disease states, and the cost of therapy. Fenofibrate may be
particularly useful in those patients with hypertriglyceridemia. A recent study
suggests that fenofibrate therapy is associated with an increase in
homocyst(e)ine levels. The clinical implications of this finding have not been
established. |
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Mental Health: Effects
on Mental Status |
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May rarely cause drowsiness or insomnia |
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Mental Health:
Effects on Psychiatric
Treatment |
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None reported |
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Dental Health: Local
Anesthetic/Vasoconstrictor
Precautions |
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No information available to require special precautions |
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Dental Health:
Effects on Dental Treatment |
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No effects or complications reported |
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Patient
Information |
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Take with food. Do not change dosage without consulting prescriber. Maintain
diet and exercise program as prescribed. You may experience mild GI disturbances
(eg, gas, diarrhea, constipation, nausea); inform prescriber if these are
severe. Report skin rash or irritation, insomnia, unusual muscle pain or
tremors, or persistent dizziness. Pregnancy/breast-feeding precautions:
Inform prescriber if you are or intend to be pregnant. Consult prescriber if
breast-feeding. |
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Dosage Forms |
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Capsule: 67 mg, 200 mg |
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