Calcii Phosphas Precipitata. Calcis Phosphas. Precipitated Phosphate of Calcium. Calcium Phosphate.

Common Name

Phosphate of Lime.

Chemical Properties

Formula Ca3 (PO4)2.

Dr. Hering prepared this by dropping dilute phosphoric acid into Hine-water as long as a white precipitate was formed. This was washed with distilled water and dried on a water-bath. Insoluble in water or alcohol, soluble in dilute nitric acid and other acids, and, to a certain extent, in carbonic acid water.


The Phosphate of Lime is prepared by trituration, as directed in our Pharmacopoeias.

Physiologico-Chemical Data

Calc. phos. is absolutely essential to the proper growth and nutrition of the body. This salt is found in the blood-plasma and corpuscles, saliva, gastric juice, bones, connective tissue, teeth, milk, etc. It gives solidity to the bones. Calc. phos. has a special chemical affinity for albumen, which forms the organic basis for this salt in the tissue-cells, and is required wherever albumen or albuminous substances are found in the secretions. It also supplies new blood-cells, becoming the first remedy in anaemia and chlorosis. It is of the greatest importance to the soft and growing tissues, promoting cell growth, supplying the first basis for the new tissues, hence is necessary to initiate growth.

General Action

Calc. phos. is curative in disease depending upon a disturbed action of the lime-molecules in the body, such as occurs in the tardy formation of callus around the ends of fractured bones, in the unnatural growth and defective nutrition of bone and other textures found in rickets and similar diseased conditions; thus the sphere of action of this remedy includes all bone diseases depending on a diseased quality of the blood of a dyscrasic taint, involving also the dermoid tissues with the osseous. When from any cause an insufficient amount of Phosphate of Lime is assimilated for the uses of the animal economy, the vegetative system suffers primarily, causing defective nutrition, imperfect cell-growth and consequent decay and destruction of tissue, especially the osseous and glandular systems. It is of use during dentition, in convulsions and spasms occurring in weak, scrofulous subjects, stimulating nutrition, etc. Another important feature is its restorative power after acute diseases, either directly or preparing the way for other remedies, by stimulating the system to their action, thus becoming an important intercur-"ent remedy.

Schussler, recoguizing the origin of the red blood-globules in the white or embryonic ones, and crediting this drug with nutritive stimulation of the white globules, claims it promotes the formation of red globules indirectly by-promoting that of the white globules. Practically, this drug proves itself a real tonic in many cases; in chronic wasting diseases and hectic, when the phosphate is found in excess in the urine, thus corresponding to faulty secondary assimilation and to faulty workings of the excretory organs. In anaemia of young, rapidly growing people; in women weakened by rapid child-bearing, prolonged suckling or excessive menstruation or leucorrheea; in accompanying diseases with exhaustive discharges, as in chronic bronchitis, tubercular diarrhoea and night-sweats, abscesses and scrofulous sores, through its great power on the secretions, it acts curatively.

In old age, where the regenerative function decreases in the nervous tissue, Calc. phos. is well indicated, and we find it useful in senile cutaneous and vaginal itching, as well as during reconvalescence from severe acute diseases. In tuberculosis pulmonum, with its emaciation, night-sweats, haemoptysis and other marked physical symptoms, Calc, phos. in low potencies holds out great promise to ameliorate the severity of the case; equally great is its benefit in pollutions of young married men (and sexual excitement of women) and onanists. In the osseous expansions of rachitic children, Traeger uses cider internally and externally, and gives at the same time Calc. phos. or Calc. jluor. This is also his favorite treatment in chlorosis (cider-whey, and three times a day about 10 grains of the second trituration of Calc. phos.), and he prefers it by far to the usual iron treatment. In chorea during puberty the salts of lime quiet our patients far better than the remedies usuallv recommended.

Pains where bones form sutures or symphyses and numb, crawling pains with chilliness, due to ansemic symptoms, worse from wet, and tendency to perspiration and glandular enlargement. Sensations mostly in small spots. Phosphatic diathesis. General lack of vital heat and aggravation from wet.

If the molecular motion of Calc. phos. is disturbed within the epithelial cells of serous membranes, a sero-albuminous exudation within the sacs takes place. In this way develop hydrops genu, hygroma patellae, etc. Minute doses of Calc. phos. will absorb these exudations.

If the cells of the epidermis have lost Calc. phos. albumen will be thrown upon the surface and by drying, form a crust, a desquamation of which can be brought about therapeutically by administering Calc. phos. Similar albuminous secretions take place on mucous surfaces, if their epithelium is diseased through loss of Calc. phos.

Spasms and pains caused by anaemia are cured by this remedy. These pains are accompanied by formication, sensation of coldness and numbness.

Guiding Symptoms And Characteristic Indications. Mental Symptoms

Impaired memory, mental anxiety with all troubles. Children are peevish and fretful, stupid, slow of comprehension. After grief, vexation, disappointment.

Head And Scalp

Vertigo in old age; headache; a cold feeling in the head; the head feels cold to the touch. Headaches before and during the second dentition; worse near the region of the sutures, after mental exertion and from dampness and change of weather. Headache with flatulence. Rheumatic headaches, tearing in bones of the skull. Crawling, as If ice water were on upper part of occiput. Headache of school-girls who are maturing and are nervous, restless, with diarrhoea, caused by jellies and sour things. Fontanelles remain open too long, skull is soft and thin. Chronic hydrocephalus; very large head, bones separated. Craniotabes. Scalp sore, tense, creeping, numbness; itching of scalp in the evening. Scrofulous ulcers on the top of the head. Hydro-cephaloid conditions, acute or chronic; also to prevent these conditions. Bald spots on head.