_Elixir Calcii Lactophosphatis (Elix. Calc. Lactophos.), Elixir of Calcium Lactophosphate, N.F._--Calcium lactophosphate (3%) in compound spirit of orange, syrup, alcohol and distilled water. Absolute alcohol content about 19 per cent. Small and probably inefficient quantities of calcium. DOSAGE: 8 Cc. or 2 fluidrachms (N.F.). _Elixir Cinchonae Alkaloidorum, Ferri et Calcii Lactophosphatis (Elix. Cinchon., Ferr. et Calc. Lactophos.), Elixir of Cinchona Alkaloids, Iron and Calcium Lactophosphate, N.F._--(Elixir Cinchonae, Ferri et Calcii Lactophosphatis, N.F. III, Elixir of Calisaya, Iron and Lactophosphate of Lime).--Syrup of calcium lactophosphate (50%), potassium citrate (3%) and elixir of cinchona alkaloids and iron. Absolute alcohol content about 12 per cent. USES: An irrational mixture, supposed to present seven active ingredients. DOSAGE: 8 Cc. or 2 fluidrachms (N.F.). _Syrupus Calcii Lactophosphatis (Syr. Calc. Lactophos.), Syrup of Calcium Lactophosphate, U.S.P._--Made by dissolving precipitated calcium carbonate (2.5%) in lactic acid (6%), phosphoric acid (3.6%) and a syrup containing orange flower water. DOSAGE: 10 Cc. or 2-1/2 fluidrachms (U.S.P.). _Syrupus Calcii Lactophosphatis et Ferri (Syr. Calc. Lactophos. et Ferr.), Syrup of Calcium Lactophosphate and Iron, N.F._--Ferrous lactate and potassium citrate (each 0.85%) and syrup of calcium lactophosphate (about 99%). DOSAGE: 4 Cc. or 1 fluidrachm (N.F.). =Calcii Phosphas Praecipitatus (Calc. Phos. Praec.), Precipitated Calcium Phosphate, N.F.=--Ca{3}(PO{4}){2}. A bulky, white, odorless, tasteless powder. Practically insoluble in water and insoluble in alcohol. ACTION AND USES: Precipitated calcium phosphate has been given in the form of powders or mixtures for its action as a calcium salt, which is similar to but without advantage over the action of the carbonate. Because of its insolubility it is now seldom used. USES: Similar to but without advantage over the carbonate. DOSAGE: 1 Gm. or 15 grains (N.F.). _Syrupus Calcii Hydrochlorophosphatis (Syr. Calc. Hydrochlorophos.), Syrup of Calcium Hydrochlorophosphate, N.F._ (Syrupus Calcii Chlorhydrophosphatis, N.F. III).--Precipitated calcium phosphate (1.75%) flavored with tincture of lemon peel and dissolved in hydrochloric acid, water and syrup. DOSAGE: 4 Cc. or 1 fluidrachm (N.F.). =Calcii Sulphidum Crudum (Calc. Sulphid. Crud.), Crude Calcium Sulphide, U.S.P.= (Calx Sulphurata, U.S.P. VIII, Sulphurated Lime).--CaS (not less than 55%). A pale gray or yellowish powder, with a faint hydrogen sulphide odor and a nauseous, alkaline taste. Very slightly soluble in cold water, insoluble in alcohol. ACTION AND USES: Externally, depilatory similar to barium sulphide. Internally has been used to arrest and prevent suppuration especially in boils, carbuncles and pustular acne. There is no reliable evidence of its therapeutic usefulness.