Stone 1B6 Solution is indicated for the treatment of renal tubular acidosis and kidney stones. It also helps provide relief from the burning sensation during urination. Kidney stones are small, hard deposits made up of calcium, phosphate, and other minerals/acid salts that stick together in concentrated urine. Renal tubular acidosis is a condition in which the kidneys fail to excrete acids into the urine. This causes the blood to remain too acidic.