Displaying 2 results of Methenamine Impurities Methenamine is a medication used to treat urinary tract infections. However, it is important to ensure that the medication is pure and free from impurities. Impurities in Methenamine can lead to adverse effects, reduced effectiveness, and possible health risks. Therefore, it is essential to monitor and control the levels of impurities in Methenamine to ensure its safety and efficacy.