Allopurinol tablets work by slowing down the speed of certain chemicals in your body. The tablets treat high levels of uric acid in the body which can cause gouty arthritis, skin and kidney problems. However, some people may not get any symptoms. Also, allopurinol tablets prevent and treat kidney stones in patients who have high uric acid levels.
It is best to drink a full glass of water with each dose and at least 8 more glasses