ATC Group: A02AA Magnesium compounds

The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.

Position of A02AA in the ATC hierarchy

Level Code Title
1 A Alimentary tract and metabolism
2 A02 Drugs for acid related disorders
3 A02A Antacids
4 A02AA Magnesium compounds

Group A02AA contents

Code Title
A02AA01 Magnesium carbonate
A02AA02 Magnesium oxide
A02AA03 Magnesium peroxide
A02AA04 Magnesium hydroxide
A02AA05 Magnesium silicate
A02AA10 Combinations

Active ingredients in A02AA

Active Ingredient Description
Magnesium carbonate

Magnesium carbonate, MgCO3 (archaic name magnesia alba), is an inorganic salt. The most common magnesium carbonate forms are the anhydrous salt called magnesite (MgCO3) and the di, tri, and pentahydrates known as barringtonite (MgCO3ยท2 H2O), nesquehonite (MgCO3ยท3 H2O), and lansfordite (MgCO3ยท5 H2O), respectively. The primary use of magnesium carbonate is the production of magnesium oxide by calcining.

Magnesium hydroxide

Magnesium hydroxide is practically insoluble in water and solution is not effected until the hydroxide reacts with hydrochloric acid in the stomach to form magnesium chloride. Its neutralising action is almost equal to that of sodium bicarbonate. When the dose is in excess of that required to neutralise the acid the intragastric pH may reach pH 8 or 9. Acid rebound following magnesium hydroxide is clinically insignificant. Magnesium hydroxide has an indirect cathartic effect resulting from water retention in the intestinal lumen.

Magnesium oxide

Magnesium oxide (MgO), or magnesia, is an empirical formula of MgO and consists of a lattice of Mg2+ ions and O2โˆ’ ions held together by ionic bonding.

Magnesium peroxide
Magnesium silicate

Related product monographs

Title Information Source Document Type  
MAALOX Oral suspension Health Products Regulatory Authority (IE) MPI, EU: SmPC
MILK OF MAGNESIA Oral Suspension Medicines & Healthcare Products Regulatory Agency (GB) MPI, EU: SmPC