Introduction
Febuxostat is used to reduce uric acid levels in adult patients with chronic gout. It is available in both tablet and capsule form. It is manufactured in the United States by Zydus Cadila.
Uses for
Febuxostat is used to reduce the uric acid levels in adult patients with chronic gout, and help reduce flares of gout pain and reduce the need for gout medication.
Mechanism of Action
Febuxostat works by inhibiting xanthine oxidase, an enzyme involved in the production of uric acid. By inhibiting this enzyme, it helps to reduce the levels of uric acid in the blood.
How Long Does it Take to Work?
It usually takes 1-2 weeks for Febuxostat to reduce levels of uric acid. It may take longer for some patients to experience a reduction in gout pain.
Absorption
Febuxostat is well absorbed after oral administration, with the maximum levels reached in the blood in 3-5 hours.
Route of Elimination
Febuxostat is eliminated primarily through the kidneys, with over 80% of the administered dose excreted in urine.
Dosage
The recommended starting dose: Febuxostat 40 mg tablet once daily. For patients who do not achieve a serum uric acid less than 6 mg per dL after 2 weeks with Febuxostat 40 mg tablet, One Febuxostat 80 mg tablet once daily is recommended. If serum uric acid less than 6 mg per dL after 2-4 weeks with Xanuric 80 (Febuxostat 80mg) tablet, then one Febuxostat 120 mg tablet once daily is recommended.
Tumor Lysis Syndrome: The recommended dose is one Febuxostat 120 mg tablet once daily. Febuxostat 120 mg tablet should be started two days before the beginning of cytotoxic therapy and continued for a minimum of 7 days. However treatment may be prolonged up to 9 days according to chemotherapy duration as per clinical judgment.
Gout Flares: Gout flares may occur after initiation of Feboxostat tablets due to changing serum uric acid levels resulting in mobilization of urate from tissue deposits. Flare prophylaxis with a non-steroidal anti-inflammatory drug (NSAID) or colchicine is recommended upon initiation of Febuxostat tablets. If a gout flare occurs during treatment, Feboxostat tablets need not be discontinued. The gout flare should be managed concurrently, as appropriate for the individual patient.
Renal impairment: No dose adjustment is necessary when administering Febuxostat in patients with mild to moderate renal impairment.
Hepatic impairment: No dose adjustment is necessary in patients with mild to moderate hepatic impairment.
Pediatric Use: Safety and effectiveness in pediatric patients under 18 years of age have not been established
The usual dose for adults is 40-80 mg once daily or 40 mg twice a day. The selected dosage should be individualized. The dose may be increased or decreased based on response to therapy.
For patients with mild hepatic impairment, a maximum daily dose of 40 mg should not be exceeded.
For patients with moderate or severe hepatic impairment, a maximum daily dose of 20 mg should not be exceeded.
Administration
Febuxostat should be taken by mouth as a whole capsule or tablet, with or without food.
Side Effect
The most common side effects of Febuxostat include headache, diarrhea, nausea, vomiting, stomach pain, and rash. In rare cases, serious liver injury, heart attack, and allergic reactions have been reported.
Toxicity
Febuxostat is generally well tolerated when used as prescribed. In rare cases, serious liver injury, heart attack, and allergic reactions have been reported.
Precaution
Patients should be monitored for elevated liver enzymes, and stopped if an increase is detected. Febuxostat should not be used in patients with severe liver or kidney diseases.
Interaction
Febuxostat may interact with other medications, including diuretics, nonsteroidal anti-inflammatory drugs (NSAIDS), and aspirin. Patients should inform their healthcare provider of any other medications they are taking.
Disease Interaction
Febuxostat should not be used in patients with a known hypersensitivity to the drug, severe liver or kidney impairment, or moderate to severe heart failure.
Drug Interaction
Febuxostat may interact with other medications, including diuretics, NSAIDS, warfarin, and aspirin. Patients should inform their healthcare provider of any other medications they are taking.
Food Interaction
Febuxostat should be taken with food or on an empty stomach.
Pregnancy Use
Febuxostat should not be used during pregnancy unless specifically indicated.
Lactation Use
It is not known whether Febuxostat is excreted in human milk. So, Febuxostat should not be used in the lactating women unless specifically indicated.
Acute Overdose
Symptoms of an acute overdose include confusion, dizziness, nausea, vomiting, and abdominal pain. Seek medical attention immediately if an overdose is suspected.
Contraindication
Febuxostat is contraindicated in patients with a known hypersensitivity to the drug, severe liver or kidney impairment, or moderate to severe heart failure.
Use Direction
Follow the directions on the prescription label carefully and take Febuxostat exactly as prescribed. The usual dose for adults is 40-80 mg once daily or 40 mg twice a day.
Storage Condition
Store at room temperature in a dry, dark place.
Volume of Distribution
Febuxostat is widely distributed in body tissues and organs.
Half Life
The half-life of Febuxostat is 12-15 hours.
Clearance
Febuxostat is eliminated primarily through the kidneys, with over 80% of the administered dose excreted in urine.
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Some Frequently Asked Questions About Febuxostat
*** Taking medicines without doctor's advice can cause long-term problems.