A fatal case of iatrogenic hypercalcemia after calcium channel blocker overdose.

We report a case of a 61-year-old woman treated for a suspected verapamil overdose with continuous calcium chloride infusion, resulting in severe hypercalcemia of 32.3 mg/dL (8.07 mmol/L) with a normal range of 8.6-10.5 mg/dL (2.15-2.63 mmol/L). Treatment with acute hemodialysis rapidly normalized the serum calcium level, but the patient later died of vasoconstrictive complications of hypercalcemia.