AZO Urinary Tract Defense Pain Relief 162 mg - 162.5 mg Strength Methenamine / Sodium Salicylate - CaseUrinary Pain Relief AZO Urinary Tract Defense 162 mg 162. 5 mg Strength Methenamine Sodium Salicylate Tablet 24 per Box Take AZO Urinary Tract Defense at the first sign burning, urgency of a UTI to help slow the progression of the infection. The formula includes methenamine, a powerful antibacterial medicine that works by slowing down the growth of the bacteria along the urinary tract and helping to control your UTI. It also includes sodium salicylate