"A new consumer-friendly form ( is now available for making reports to MedWatch, the Food and Drug Administration's (FDA) on-line system for collecting information about serious problems with drugs, medical devices and other FDA-"...
Injection, USP 50%
2.03 mM/mLof Magnesium Sulfate (magnesium sulfate (magnesium sulfate injection) injection) heptahydrate
Osmolarity 4.06 mOsmol/mL
MUST BE DILUTED PRIOR TO IV ADMINISTRATION
- Patient Information:
Details with Side Effects
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. The molecular formula is MgSO4•7H2O and the molecular weight is 246.47.
What are the possible side effects of magnesium sulfate injection (Sulfamag)?
Side effects with magnesium sulfate injection are not common. Serious side effects include:
- an allergic reaction (shortness of breath; closing of the throat; hives; swelling of the lips, face, or tongue; rash; or fainting);
- heart disturbances;
- breathing difficulties;
- poor reflexes;
- confusion, extreme tiredness or weakness;
- low body temperature;
- severe headache;
- rash or flushing;
- vision problems; or
- nausea or vomiting.
This is not a complete list of side effects...
Last reviewed on RxList: 8/11/2008
This monograph has been modified to include the generic and brand name in many instances.
Additional Magnesium Sulfate Information
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Find out what women really need.