Overview Magnesium hydroxide is a widely used compound in the medical field, primarily known for its role as an antacid and laxative. It helps relieve digestive discomfort, including acid reflux, heartburn, and constipation. This article provides a detailed look at its uses, benefits, side effects, dosage guidelines, and more. What is Magnesium Hydroxide? Magnesium hydroxide is an inorganic compound that appears as a white, odorless powder. It is commonly found in over-the-counter (OTC) medications for digestive issues. The most well-known product containing magnesium hydroxide is milk of magnesia, which is used to treat constipation and acid indigestion. How It Works…