Lithium intoxication: manifestations and management.

The clinical diagnosis of lithium intoxication can be elusive because of the slow onset and diversity of toxic manifestations. Mental status and neurologic symptoms often predominate. After the diagnosis is made, management depends on the clinical presentation and serum lithium level. Hemodialysis is the treatment of choice for severe lithium intoxication. Two cases of lithium intoxication are presented that demonstrate that predisposing factors and drug interactions play major roles. A review is given of the pathophysiology, presenting signs, symptoms, and approaches to treatment of lithium intoxication.