rn Please consult your physician before taking any medication. Generic Name: allopurinol (al oh PURE i nole) Brand Names: Zyloprim, Zyloric What is allopurinol? Allopurinol reduces the production of uric acid in your body. Uric acid buildup can lead to gout or kidney stones. Allopurinol is used to treat gout or kidney stones, and to decrease levels of uric acid in people who are receiving cancer treatment. Allopurinol may also be used for purposes other than those listed in this medication guide.