Pantoprazole is an extensively used proton pump inhibitor (PPI) for acid peptic disease. PPI rarely cause hypomagnesemia. Hypomagnesemia is commonly associated with hypokalemia and hypocalcemia. Severe hypomagnesemia and hypocalcemia can cause seizures. Here, we report a patient on long-term pantoprazole who presented with generalized tonic-clonic seizures and had severe hypomagnesemia, hypocalcemia, hypokalemia, and secondary hyperparathyroidism. When patients on long-term PPI present with seizures, hypomagnesemia/hypocalcemia has to be excluded.
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Anandan et al. (2024) studied this question.
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