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

非常严重的情况下，可能需要静脉注射糖皮质激素、镁和氧疗。

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

，这并不意味着镁不是一种有用的药。

Epsom salt is a form of magnesium sulfate, a compound made of magnesium, sulfur, and oxygen.

泻盐是镁的一种形，镁是一种由镁、和氧组成的化合。

In the 1600s, it became a popular spa town because some of its natural springs were full of magnesium sulfate.

1600 年代，它成为一个受欢迎的温泉小镇， 因为它的一些天然泉水富含镁。

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，一些产科常用药如麻醉药（特别是氟烷）、镁、硝苯地平和特布他林等也会影响产后子宫的正常收缩，增加宫缩乏力的风险。