Relationship between dystonia and serum calcium levels.

The relationship between acute dystonic reactions and serum calcium levels in 17 acutely psychotic patients was studied. Previous studies have implicated an association between a lowered serum calcium value and acute dystonia. This study failed to note a significant incidence of hypocalcemia in a group of psychotic patients. It is not known whether other factors related to calcium-magnesium balance may be related to dystonia.