Allopurinol
Zyloprim (allopurinol) is a prescription medication that reduces the production of uric acid in the body. It is primarily used to treat conditions associated with elevated uric acid levels, such as gout and certain types of kidney stones. This medication is typically prescribed when dietary changes alone are insufficient to manage uric acid levels.
Zyloprim is a uric acid-lowering medication used to treat gout and other conditions caused by excess uric acid.
Key facts at a glance
- RxNorm
- 203600
- Generic
- Zyloprim
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Zyloprim is used to treat gout (including gouty arthritis and gouty kidney stones), hyperuricemia (high uric acid in the blood), and may be prescribed to prevent elevated uric acid levels in certain cancer patients undergoing treatment.
Zyloprim works by inhibiting an enzyme called xanthine oxidase, which is involved in the production of uric acid. By blocking this enzyme, the medication reduces the amount of uric acid produced in the body, helping to prevent crystal formation and associated symptoms.
Zyloprim is typically taken once daily with food to reduce stomach upset. Patients should stay well hydrated while taking this medication. Abruptly stopping treatment is not recommended. Some patients may experience an initial increase in gout attacks when starting therapy; a healthcare provider may prescribe additional medication to help prevent this.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy