Displaying 3 results of Allopurinol Stable Isotopes Allopurinol Stable Isotopes are isotopes of the drug Allopurinol that have a stable atomic nucleus. These isotopes are used in medical research to study the pharmacokinetics, metabolism, and distribution of Allopurinol in the body. Allopurinol is commonly used to treat gout and hyperuricemia, and the stable isotopes allow for more precise and accurate analysis of its effects on the body.