International directory enquiries http://www.edna.eu/en/what-is-hydrochlorothiazide-25-mg-tab-used-for-504#different what is hydrochlorothiazide 25 mg tab used for  "While not perfect, the methods are ever improving, with blood passports and the ability to test athletes 24/7 in and out of competition proving to be effective in catching cheats and acting as deterrents," Rogge said. "We also keep samples for eight years now so that improvements in testing can catch cheats long after the games are over."