Characters.and Tests. - In small granular crystals of a pale greenish-blue colour. In other respects it corresponds to the characters and tests for sulphate of iron.

Dose. - 1 to 5 grains.

Uses. - It is very astringent. It has been used externally as ointment or lotion to the skin in erysipelas, as a lotion in ophthalmia, and as a lotion or injection in prolapsus ani, and bleeding piles. It has also been used as an injection in gonorrhoea and leucorrhoea.

Internally it is used in cases of anaemia, especially where this is accompanied by a tendency to profuse sweating, passive haemorrhages, or mucous discharges, such as chronic catarrh or leucorrhoea. Its astringent action on the stomach has been said to render it serviceable in gastrodynia and gastric ulcer.

Ferri Carbonas Saccharata, B.P.; Saccharatus, U.S.P.

Sa-ccharated Carbonate of Iron, B.P.; Saccharated Ferrous Carbonate, U.S.P.

Carbonate of iron, FeO,CO2 or FeCO3, mixed with peroxide of iron and sugar, the carbonate forming at least 37 per cent. of the mixture B.P., 15 per cent. U.S.P.

Characters. - Small coherent lumps, or powder, of a grey colour, with a sweet, very feeble chalybeate taste.

Solubility. - It dissolves with effervescence (carbonate) in warm hydrochloric acid diluted with half its volume of water.

Reactions. - The solution gives only traces of sulphate (p. 595) and exhibits the reactions of a ferrous salt.

Dose. - 5 to 20 grains.

Preparations

B.P.

Dose.

Pilula Ferri Carbonatis (vide p. 522)......

1 part in 1 1/4 .........

5-20 grs.

U.S.P.

Massa Ferri Carbonatis ...............................................

................................

3-5 grs.