Magnesium Chloride

Category: mineral

Aliases: MgCl2

Pharmacological Mechanism

Inorganic Mg²⁺ salt — high elemental Mg (~12%), high water solubility, used IV in eclampsia + arrhythmias. Topical "magnesium oil" claims poor evidence for transdermal absorption. Laxative effect at high oral doses.

Half-Life (t½)

PO: 3h

Dosing Guidelines

• PO: Typical 300mg (Range: 200 - 800 mg)

Target Organ Systems

• cardiovascular