Professional Grade, Clinical Strength, Urinary Systems MGRx™ (Uri.Sys. Ass't) contains important nutrients and is one of the most potent kidney, bladder and urinary tract health formulas available. Uri.Sys. Ass't™ contains a synergistic blend of biologically active ingredients to support kidney and bladder function. Routine use of Uri.Sys. Ass't™ supports thorough urinary tract cleansing and improved kidney and bladder performance. Uri.Sys. Ass't is a kidney activator formula that nutritionally supports our bodys urinary system, specifically kidney, bladder and urinary tract health.