What is Epsom Salt (magnesium sulfate)?
Magnesium is a naturally occurring mineral. Magnesium is important for many systems in the body especially the muscles and nerves. Magnesium sulfate also increases water in the intestines, which may induce defecation. Magnesium hydroxide is used as a laxative to relieve occasional constipation (irregularity). Magnesium sulfate may also be used for purposes other than those listed in this medication guide.