White or grayish white, odorless and nearly tasteless powder. Very slightly soluble in water (1:2300); insoluble in alcohol.

Action and Uses: Reputed “tonic,” but without advantage over the ordinary iron salts.

Dosage: 0.2 Gm. or 3 grains.

Elixir Ferri Hypophosphitis (Elix. Ferr. Hypophos.), Elixir of Ferric Hypophosphite, N.F.—Ferric hypophosphite (1.65%), potassium citrate (2.15%), water and aromatic elixir. Absolute alcohol content about 21 per cent.

Dosage: 4 Cc. or 1 fluidrachm (N.F.).

Elixir Hypophosphitum et Ferri (Elix. Hypophos. et Ferr.), Elixir of Hypophosphites and Iron, N.F.—Calcium hypophosphite and sodium hypophosphite (each 1.75%), potassium hypophosphite and ferric hypophosphite (each 0.875%), potassium citrate, hypophosphorous acid, water, syrup and aromatic elixir. Absolute alcohol content about 10 per cent.

Dosage: 8 Cc. or 2 fluidrachms (N.F.).

Liquor Ferri Hypophosphitis (Liq. Ferr. Hypophos.), Solution of Ferric Hypophosphite, N.F. (Solution of Hypophosphite of Iron).—Ferric hypophosphite (16.5%) dissolved by means of potassium citrate (21.5%) in glycerin and water.

Dosage: 1 Cc. or 15 minims (N.F.).

Syrupus Ferri Hypophosphitis (Syr. Ferr. Hypophos.), Syrup of Ferric Hypophosphite, N.F.—Ferric hypophosphite (1.75%), dissolved by means of potassium citrate (2.5%), and made into a syrup flavored with orange flower water.