Donat Mg is a brand name registered by the company Droga Kolinska (located in Ljubljana) which is in turn owned by Atlantic Grupa and also produces Slovenia's best known soft drink, Cockta. Today, Donat Mg is distributed in various European countries. Mineral contents The recommended amount is 500 ml per day. Because of its hyperosmolarity, Donat Mg is a natural osmotic laxative. It is classified as a saline laxative. Its effectiveness as a laxative is due to sulphate salts (magnesium sulphate or Epsom salt and sodium sulphate or Glauber’s salt) and around 1000 mg/l of magnesium. Sulphates draw water from the cells
Magnesium hydroxide effects through the inclusion of aluminum hydroxide, which inhibits the contractions of smooth muscle cells in the gastrointestinal tract, thereby counterbalancing the contractions induced by the osmotic effects of the magnesium hydroxide. Magnesium hydroxide is also a component of antiperspirant. Magnesium hydroxide is useful against canker sores (aphthous ulcer) when used topically. Magnesium hydroxide powder is used industrially to neutralize acidic wastewaters. It also takes part in the Biorock method of building artificial reefs. Natural magnesium hydroxide (brucite) is used commercially as a fire retardant. Most industrially used magnesium hydroxide is produced synthetically. Like aluminium hydroxide, solid magnesium hydroxide has