In very severe cases, intravenous corticosteroids, magnesium sulfate, and oxygen therapy might be needed.

严重的情况下，可能需要静脉注射糖皮质激素、硫酸镁和氧疗。

Now, that doesn’t mean magnesium sulfate isn’t a useful drug.

现，这并不意味着硫酸镁不是种有用的物。

The most common salts in Spotted Lake are magnesium sulfate, sodium sulfate, and sodium carbonate.

斑点湖中最见的盐是硫酸镁、硫酸钠和碳酸钠。

Finally, some commonly used obstetric medications such as anesthetics (especially halothane), magnesium sulfate, nifedipine, and terbutaline can all interfere with uterine contractions and increase the risk of uterine atony.

此外，些产科用物如麻醉（是氟烷）、硫酸镁、硝苯地平和布他林等也会影响产后子宫的正收缩，增加宫缩乏力的风险。