Displaying 1 results of Methenamine Stable Isotopes Methenamine stable isotopes are non-radioactive forms of Methenamine, a medication used to prevent urinary tract infections. These stable isotopes have different atomic masses than the naturally occurring Methenamine, making them useful in medical research and drug development. They can be used as tracers in metabolic studies and in clinical trials to determine the efficacy and safety of Methenamine.