Osmotic demyelination syndrome
Gradual, controlled treatment of low sodium levels may reduce the risk of nerve damage in the pons. Being aware of how some medications can change sodium levels can prevent these levels from changing too quickly.
Skorecki K, Ausiello D. Disorders of sodium and water homeostasis. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 117.