Magnesium oxide is the chemical utilized for many different reasons. This is used to make formations which help in sour stomach, heartburn, and acid indigestion. This is a laxative as well as an optimum supplement which can maintain tolerable magnesium in the body. Magnesium oxide is also functional as an antacid that treats indigestion as well as occasional constipation. It has high effectiveness and is well tolerated and safe to use. This compound has nonmedical usage as well.