Epitome of the Pharmacopeia of the United States and the National Formulary / With Comments

by Albion Walter Hewlett; William August Puckner; Torald Hermann Sollmann; Martin I. Wilbert

*Magnesii Citras, Magnesium Citrate.

*Liquor Magnesii Citratis (Liq. Mag. Cit.), Solution of Magnesium Citrate, U.S.P.—Magnesium citrate corresponding to not less than 1.5 per cent. of magnesium oxide.

Uses: Efficient and not distasteful mild saline laxative.

Dosage: 350 Cc. or 12 fluidounces (1 bottle) (U.S.P.).

Magnesii Hydroxidum, Magnesium Hydroxide.

Magma Magnesiae (Magma Mag.), Magnesia Magma, U.S.P. (Milk of Magnesia).—A suspension of magnesium hydroxide in water [equivalent to about 7% Mg(OH)₂] forming a thick, white liquid.

Uses: Widely used as mild alkaline laxative and tooth wash.

Dosage: 10 Cc. or 2-1/2 fluidrachms (U.S.P.).

*Magnesii Oxidum (Mag. Oxid.), Magnesium Oxide, U.S.P. (Magnesia, Calcined Magnesia, Light Magnesia).—MgO (not less than 96%).

A white, bulky, odorless powder with an earthy but not saline taste. Almost insoluble in water; insoluble in alcohol.