Dosage: 4 Cc. or 1 fluidrachm (N.F.).
*Calcii Carbonas Praecipitatus (Calc. Carb. Praec.), Precipitated Calcium Carbonate, U.S.P. (Precipitated Chalk).—CaCO3.
A fine, white, odorless, tasteless powder. Nearly insoluble in water and insoluble in alcohol. Decomposed by acids with evolution of carbon dioxide.
Action and Uses: Chiefly used as a basis for tooth powder. Internally, employed as an antacid in diarrheas, etc.; externally in mixtures with cream or oil, has been used as an application to burns as an antacid and protective.
Dosage: 1 Gm. or 15 grains (U.S.P.), as powder or in suspension.
*Calcii Chloridum (Calc. Chlor.), Calcium Chloride, U.S.P.—Hydrated calcium chloride (not less than 75 per cent. of CaCl2).
White, hard, deliquescent, odorless masses or granules, with a sharp, saline taste. Very soluble in water (1:0.62), and freely soluble in alcohol (1:10).
Action and Uses: Used for the oral administration of calcium. Employed in hemorrhagic conditions, in which it is probably useless. Has also been advised in inflammatory conditions of the skin and mucous membranes (urticaria, serum-rashes, hay-fever, etc.).
Dosage: 0.5 Gm. or 8 grains (U.S.P.), in solution.
Calcii Glycerophosphas (Calc. Glycerophos.), Calcium Glycerophosphate, U.S.P. (Calcium Glycerinophosphate).—CaC3H7O6P.