Magnesium

(mag-/rc'-zr-um). Mg; atomic weight 24.3; quantiva II; spec, gravity 1.75. One of the metals of the alkaline 'nature and inorganic distributed of in animal earths, widely forming also a constituent and vegetah sues. See Elements, Table of. The physiologic 1 of its salts are antacid and laxative. Various salts are extensively used in medicine. M. boratis, Liquor (B. P.), contains one part of boric acid in six. It is recommended as a paint in diphtheria. M. carbon as, Dose gr. M. carb., Liquor (B.P.) Dose M. citras effervescens granulatus, a preparation di olving in water with effervescence. M. citras granulatus,.nulated citrate of magnesia," combined with citric acid, sugar, sodium bicarbonate, alcohol, and water. Dose 511-5- M. citratis, Liq., contains M. carbonate gr. 200, citric acid gr. 400, syr. of citric acid gr. 1200, pota ium bicarbonate gr. 30, water q. s. ad. Dose 5 iv-vj. M. oxid., Mg.O, magnesia, the oxid of the metal, a constituent of several laxative mixtures. Dose gr. x-gj. Magnesia ponderosa, heavy or calcined magnesia. Dose gr. x— izj. M. sulphas, "Epsom salt," "salts," much used as a popular purgative. Dose 3 j— 3 j. M. sulph at., Enema (B.P.), composed of sulphate of magnesium one part, olive oil one part, starch mucilage 15 parts. M. sulph is, Dose gr. z— xxx. M., Trochi sci, each contains magnesia gr. iij, nutmeg, gr. sugar, tragacanth, water, q. s.