<unk> as a medication is used to treat and prevent low blood<unk>  and seizures in women with eclampsia. It is also used in the treatment of torsades de pointes, severe asthma exacerbations, constipation, and barium poisoning. It is given by injection into a vein or muscle as well as by mouth. As epsom salts, it is also used for mineral baths. Common side effects include low blood pressure, skin flushing, and low blood calcium. Other side effects may include vomiting, muscle weakness, and decreased breathing. While there is evidence that use during pregnancy may harm the baby, the benefits in certain conditions are greater than the risks. Its use during breastfeeding is deemed to be safe. The way it works is not fully understood, but is believed to involve depressing the action of neurons.<unk> came into medical use at least as early as 1618. It is on the World Health Organization's List of Essential Medicines.
Magnesium sulfate 
Potassium bromide
Benzonatate
Heptobarbital
Calcium chloride
Amobarbital
Metkefamide
Mephenytoin