Magnesium is a naturally occurring mineral. Magnesium is important for many systems in the body especially the muscles and nerves.
Magnesium oxide is used as a supplement to maintain adequate magnesium in the body.
Magnesium oxide is also used as an antacid to treat indigestion, or as a laxative to relieve occasional constipation.
Magnesium oxide may also be used for purposes not listed in this medication guide.
