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Allopurinol: Uses, Dosage, Side Effects, and More
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Allopurinol is a prescription medication used to lower blood uric acid levels, primarily to prevent gout attacks and to manage kidney stones or uric acid buildup caused by certain treatments, such as cancer chemotherapy. By reducing uric acid levels, Zyloprim prevents the formation of urate crystals that can cause painful inflammation in the joints and kidneys. It is designed for long-term gout management, not for the relief of acute gout.
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Controlled Substance Warning
Allopurinol is not a controlled substance. It is available by prescription only and should be taken consistently as directed by a healthcare provider. It should not be started during an active gout attack unless directed by your doctor.
Drug Facts
Generic Name
Allopurinol
Brand Names
Zyloprim, Aloprim (IV form)
Drug Type
Xanthine oxidase inhibitor (uric acid–lowering agent)
Dosage Forms
Oral tablets, intravenous injection (hospital use)
Typical Dosage
- Gout (initial): 100 mg once daily, gradually increased as needed
- Maintenance dose: 200–300 mg daily (mild gout); 400–600 mg daily (severe gout)
- Maximum dose: 800 mg per day
- Kidney stones (uric acid): 200–300 mg daily
- Tumor lysis syndrome (chemotherapy): Dose individualized based on uric acid levels and renal function
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Disclaimer
The information provided on this page is for general informational purposes only and is not intended as medical advice. Always consult with a licensed healthcare provider before starting, stopping, or changing any medication regimen. While Invictus strives to provide accurate and up-to-date information, individual health conditions and circumstances vary. The prices, availability, and descriptions of all medications on this page are subject to change.
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