This section is from the "A Handbook of Useful Drugs" book, by State Medical Examining and Licensing Boards.
Properties : Precipitated calcium phosphate occurs as a bulky, white, amorphous powder that is odorless and tasteless. It is practically insoluble in water and in alcohol, but is soluble in hydrochloric or nitric acid.
Action and Uses: Because of the fact that calcium phosphate forms much the greater portion of the mineral matter of the human body, it has been supposed to be indicated in a variety of conditions. There is little or no evidence that it is of special value or has any advantages over calcium carbonate. It may be administered in the form of powder or in a complex mixture by dissolving it in a suitable acid.
Dosage: 1 gm. or 15 grains.