Yellowish-green scales or powder, odorless and nearly tasteless. Freely soluble in water (1:2) and insoluble in alcohol.
Action and Uses: Reputed “tonic,” but without advantage over the ordinary iron salts.
Dosage: 0.2 Gm. or 3 grains.
Ferri Hydroxidum, Ferric Hydroxide.
Ferri Hydroxidum cum Magnesii Oxido (Ferr. Hydrox. cum Mag. Oxid.), Ferric Hydroxide with Magnesium Oxide, U.S.P. (Arsenic Antidote, Ferric Hydrate with Magnesia).—A dilute solution of ferric sulphate and a mixture of magnesium oxide with water, kept in separate bottles. When mixed, they yield ferric hydroxide.
Note:—The prescribing of iron can be greatly simplified, without sacrificing anything of real value, if physicians will confine themselves to the starred preparations.
Uses: Antidote for arsenic.
Dosage: 120 Cc. or 4 fluidounces.
Magma Ferri Hydroxidi (Magm. Ferr. Hydrox.), Ferric Hydroxide Magma, N.F. (Ferri Hydroxidum, U.S.P. VIII, Ferric Hydroxide).—A suspension of ferric hydroxide in water.
Ferri Hypophosphis (Ferr. Hypophos.), Ferric Hypophosphite, N.F.