magnesium carbonate(redirected from Chalk (Drying agent))
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a chemical element, atomic number 12, atomic weight 24.312. (See Appendix 6.) Its salts are essential in nutrition, being required for the activity of many enzymes, especially those concerned with oxidative phosphorylation. It is found in the intra- and extracellular fluids and is excreted in urine and feces. The normal serum level is approximately 2 mEq/L. Magnesium deficiency causes irritability of the nervous system with tetany, vasodilation, convulsions, tremors, depression, and psychotic behavior.
magnesium carbonate an antacid.
magnesium chloride an electrolyte replenisher and a pharmaceutic necessity for hemodialysis and peritoneal dialysis fluids.
magnesium citrate a saline laxative used for bowel evacuation before diagnostic procedures or surgery of the colon; administered orally.
magnesium salicylate see salicylate.
magnesium silicate MgSiO3, a silicate salt of magnesium; the most common hydrated forms found in nature are asbestos and talc.
magnesium sulfate Epsom salt; an anticonvulsant and electrolyte replenisher, also used as a laxative and local antiinflammatory.
magnesium trisilicate a combination of magnesium oxide and silicon dioxide with varying proportions of water; used as a gastric antacid.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
agent used in gastric and intestinal acidity and as a laxative.
Farlex Partner Medical Dictionary © Farlex 2012
MgCO3·3H2O; a bulky, white, odorless powder, taken by mouth to neutralize stomach acid.
CAS # 546-93-0
See also: magnesium
Medical Dictionary, © 2009 Farlex and Partners
magnesium carbonateA mild antacid drug used to treat DYSPEPSIA. Brand names of preparations containing it are Algicon and Topal.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005