ADVERSE REACTIONS CYTRA-3 Oral Solution is generally well tolerated without any unpleasant side effects when given in recommended doses to patients with normal renal function and urinary output. However, as with any alkalinizing agent, caution must be used in certain patients with abnormal renal mechanisms to avoid development of hyperkalemia of alkalosis, especially in the presence of hypocalcemia. Potassium intoxication causes restlessness, weakness, mental confusion, and tingling of extremities.