Prescription
Xanthine oxidase inhibitor (uric acid lowering agent)
Allopurinol
Last reviewed April 2026
Who is this for?
What is this drug?
Allopurinol is a medicine that lowers the amount of uric acid your body produces — uric acid is a waste product that can build up in your blood and joints, causing painful swelling and kidney stones.
What is it used for?
Gout (painful joint swelling especially in the big toe)high uric acid levels in the bloodkidney stones caused by uric acidprevention of uric acid buildup during cancer treatment
Prescription Required
A doctor's prescription is required to obtain this drug legally.