Allopurinol (which goes by the brand names Aloprim and Zyloprim) is a drug that belongs to a class of medications called xanthine oxidase inhibitors. Allopurinol is prescribed for the treatment of chronic gout and is used to prevent rather than treat gout attacks.
The medication works by blocking uric acid production. Uric acid is a waste product normally present in the blood as a result of the breakdown of purines. Excessive amounts of uric acid can cause crystals to form in the joints, which can lead to gout.
When is allopurinol prescribed?
Allopurinol is prescribed to prevent chronic gout attacks, manage high uric acid levels caused by cancer medications, and treat kidney stones. There are also a handful of off-label uses for which your doctor may prescribe allopurinol.
What is the availability of allopurinol?
Allopurinol is available as a 100 mg. tablet. It is taken once or twice daily, usually following a meal.