Magnesium Sulfate Home>Pharmacy>Drugs_and_Medications>M>Magnesium Sulfate     Web Pages Mag Sulfate (Magnesium Sulfate Injection) - RxList Monographs Description with links to full prescribing information for this intracellular fluid indicated in the treatment of Convulsions and Tetany (uterine) and in the treatment and prophylaxis of Hypomagnesemia. Magnesium Sulfate - Familydoctor.org Information for patients in English and Spanish.