What is an expected side effect of magnesium sulfate therapy during preterm labor?

Magnesium sulfate therapy is commonly used in the management of preterm labor due to its ability to relax smooth muscle and potentially delay labor. One of the expected side effects of magnesium sulfate is nausea. This occurs because magnesium can influence gastrointestinal motility and result in sensations of discomfort or queasiness in some patients.

Patients receiving magnesium sulfate may experience gastrointestinal side effects due to its pharmacological action, which can affect the nervous system and result in nausea. It's important for healthcare providers to monitor these symptoms and provide supportive care as needed.

In contrast, hypertension is not a typical side effect of magnesium sulfate; rather, magnesium is often used to manage high blood pressure in certain situations. Vomiting can occur but is less frequently documented compared to nausea. Insomnia may occur as a side effect of other medications or conditions but is not a common direct response to magnesium sulfate.