In defense of magnesium sulfate.

Elliott, John P; Lewis, David F; Morrison, John C; Garite, Thomas J · Obstet Gynecol · 2009

review · Level V

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Abstract

Magnesium sulfate has been used by obstetricians for more than 25 years to treat preterm labor. Magnesium sulfate is effective in delaying delivery for at least 48 hours in patients with preterm labor when used in higher dosages. There do not seem to be any harmful effects of the drug on the fetus, and indeed there is a neuroprotective effect in reducing the incidence of cerebral palsy in premature newborns weighing less than 1,500 g.

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