Magnesium Sulfate Injection, USP (50%) for IV and IM use is a sterile concentrated solution of magnesium sulfate (magnesium sulfate (magnesium sulfate injection) injection) USP. Each mL contains: magnesium sulfate (magnesium sulfate (magnesium sulfate injection) injection) (heptahydrate) 500 mg, which provides 4.06 mEq each of magnesium (Mg++) and sulfate (SO4=), water for injection q.s. The pH (5.5 - 7.0) is adjusted with sulfuric acid and/or sodium hydroxide. The solution contains no bacteriostatic agent or other preservatives.
Uses - high blood pressure, migraines, muscle spasm
Contraindications - low blood pressure, start with 1-2cc in all IVs, move up to 5-10cc in a 250 ml bag