Apr 09, 2020· Magnesium is a naturally occurring mineral that is important for many systems in the body especially the muscles and nerves. Magnesium sulfate injection is used to treat hypomagnesemia (low levels of magnesium in your blood).. Magnesium sulfate injection is also used to prevent seizures in pregnant women with conditions such as pre-eclampsia, eclampsia, or toxemia of pregnancy.
