Lithium neurotoxicity.

The peripheral and central neurotoxic effects of lithium carbonate are illustrated by 4 case histories. Lithium neurotoxicity is likely to be more common than the literature suggests. Neurological sequelae may be irreversible and may be associated with therapeutic serum levels. Prevention may be facilitated by more stringent case selection, EEG and clinical monitoring and the development of improved methods of drug level assessment.