Search by Drug Name A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Clinical Trials for HIPREX Clinical trials list click for details Efficacy and Mechanism of Action of Methenamine Hippurate (Hiprex™) in Women With Recurring Urinary Tract Infections. Short-course Methenamine Hippurate for Prevention of Post-operative UTI