Lithium for Carbamazepine-Induced Syndrome of Inappropriate Antidiuretic Hormone.

Objectives: To examine the effectiveness of low-dose lithium carbonate for managing carbamazepine-induced hyponatremia.

Methods: Single case study in an 88 year old man with bipolar illness and vascular dementia who had failed to respond to other mood stabilizers.

Results: The patient had developed hyponatremia on two separate occasions when treated with carbamazepine.