Epitome of the Pharmacopeia of the United States and the National Formulary / With Comments

by Albion Walter Hewlett; William August Puckner; Torald Hermann Sollmann; Martin I. Wilbert

Liquor Hydrargyri Nitratis (Liq. Hydrarg. Nit.), Solution of Mercuric Nitrate, N.F.—Hg(NO₃)₂ (60%).

Uses: Caustic.

Unguentum Hydrargyri Nitratis (Ung. Hydrarg. Nit.), Ointment of Mercuric Nitrate, U.S.P. (Citrine Ointment).—Mercuric nitrate (equivalent to mercury 7%) in lard.

*Hydrargyri Oxidum Flavum (Hydrarg. Oxid. Flav.), Yellow Mercuric Oxide, U.S.P.—HgO.

Light orange-yellow, heavy, odorless powder, with a somewhat metallic taste. Almost insoluble in water, insoluble in alcohol, readily dissolved by dilute hydrochloric acid and nitric acid.

Action and Uses: The ointment is used, especially on the eye, as an antiseptic and stimulant; also to some extent in impetiginous affections.

Dosage: For the eye, 2 per cent.; for the skin, from 5 to 10 per cent.

Lotio Flava (Lot. Flav.), Yellow Lotion, N.F. (Yellow Wash, Aqua Phagedaenica Flava).—A suspension of mercuric oxide produced by the action of lime water on mercuric chloride.

Uses: Mercurial antiseptic.

*Unguentum Hydrargyri Oxidi Flavi (Ung. Hydrarg. Oxid. Flav.), Ointment of Yellow Mercuric Oxide, U.S.P.—Yellow mercuric oxide (10%) in water, hydrous wool fat and petrolatum.