What are the side effects of magnesium sulfate?
The line between a “therapeutic” and “toxic” dose of magnesium sulfate is very thin. In general, the larger the dose, the greater the chance of severe side effects. Doctors can test your blood to see how much magnesium is in it. This will indicate when a “safe” dose has been exceeded. They also can do reflex checks and monitor urine output, which also may indicate when a “safe” dose has been exceeded.