“…Al though there is no known pathogenetic relationship among glycine solution, hyperammonemia, and CPM, the situation might be unique. Three cases have been de scribed in which CPM followed rapid correction of hy ponatremia in patients with psychogenic polydipsia, but in none of these was the duration of hyponatremia clearly known [10][11][12], It must be realized that hyponatremia in a compulsive water drinker could still be a chronic pro cess, if polydipsia was sustained or water excretion was impaired by another disorder.…”