Difference between revisions of "Magnesium sulfate"

(See Also)
(See Also)
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*[[Critical care quick reference]]

Revision as of 21:30, 19 December 2014

Adult Dosing

  • Loading dose = 1-2gm in 10mL D5W over 1-2min (cardiac arrest)
  • Loading dose = 1-4gm in 50-100 D5W over 20-60min (spontaneous circulation)



  • Torsades
  • Refractory v-tach/fib (regardless of Mg level)

Mechanism of Action

  • Increases vasomotor tone
  • Prolongs AV conduction; prolongs refractoriness

Adverse Drug Rxns

  • Hypotension (rare)


  • Onset of action = Immediate
  • Duration of action = 30min

See Also