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Can magnesium overuse cause long term heart problems?

1 doctor weighed in
Dr. Nikolaos Zacharias
Obstetrics & Gynecology - Maternal Fetal Medicine

In brief: No.

Magnesium sulfate can cause toxicity when infused at excessive rates, however its effects quickly dissipate once the infusion is stopped (excreted via urine rather promptly).
In extreme cases of severe toxicity cardiac arrest can occur and result in death or permanent deficits in neurological or cardiac function; this is very rare and exceptional.

In brief: No.

Magnesium sulfate can cause toxicity when infused at excessive rates, however its effects quickly dissipate once the infusion is stopped (excreted via urine rather promptly).
In extreme cases of severe toxicity cardiac arrest can occur and result in death or permanent deficits in neurological or cardiac function; this is very rare and exceptional.
Dr. Nikolaos Zacharias
Dr. Nikolaos Zacharias
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