Displaying 1 results of Cromolyn Stable Isotopes Cromolyn is a medication that is used to treat asthma and allergic rhinitis. It works by preventing the release of inflammatory substances in the body. Cromolyn Stable Isotopes are specially labeled versions of cromolyn that are used in medical research to study the drug's metabolism and activity within the body. These isotopes are chemically identical to regular cromolyn, but contain a specific atomic label that allows researchers to track their movement within the body.