Allopurinol and the risk of prostate cancer

Allopurinol is commonly prescribed to treat hyperuricemia. The association between allopurinol use and other comorbidities has been widely explored.1 2 Recently one cohort study revealed that no significant association could be detected between allopurinol use and the risk of prostate cancer (HR=1.03; 95% CI 0.92 to 1.16),3 but another cohort study revealed that long-term use of allopurinol for more than 1 year was associated with a lower risk of prostate cancer in men with gout when compared with …