Potassium magnesium citrate has being proven to be an effective prophylaxis against recurrent calcium oxalate nephrolithiasis. Liquid potassium magnesium citrate has being studied in clinical trial for controlling Hypertension. Provision of alkali as potassium-magnesium citrate is an effective countermeasure for the increased risk of renal stone disease associated with immobilization. Despite an increase in urine calcium concentration, the relative saturation of calcium oxalate decreased due to citrate chelation of calcium and the concentration of undissociated uric acid decreased due to the significant increase in urine pH. Potassium magnesium citrate is a nutritional supplement that fights kidney stones in three different ways. The potassium provided by the supplement raises the pH of the urine, making it more alkaline, thus reducing the amount of calcium that the urine can dissolve. When there is less calcium in the urine, fewer calcium kidney stones can form. The magnesium in the supplement reduces the amount of calcium the kidneys pump out of the body and into the urine. And the citrate in the supplement keeps oxalates dissolved in the urine so they are flushed away before they can form kidney stones.