Ointment of Sulphuric Ac′id. Syn. Unguentum acidi sulphurici, L. Prep. 1. (Dr Duncan.) Sulphuric acid, 1 dr.; lard, 2 oz.

2. (Ph. D. 1826.) Sulphuric acid, 1 dr.; lard, 1 oz.; mix.

Uses, &c. Black, fetid; in itch. It is now seldom used. With oil of turpentine it has been used as a stimulating liniment in rheumatism. An ointment made of 112 dr. of dilute sulphuric acid to 1 oz. of lard is a good application in prurigo.

Ointment, Sulta′na. Spermaceti and white wax, of each 14 oz.; oil of almonds and butter of cacao, of each 14 lb.; melt together, add of balsam of Peru, 1 dr., stir constantly for a few minutes, and after it has settled pour off the clear portion; to this add of orange-flower water, 2 fl. dr., and stir the mixture constantly until it concretes. A very agreeable species of cold cream.

Ointment of Tan′nate of Lead. Syn. Unguentum plumbi tannatis, L. Prep. 1. Tannate of lead, 112 dr.; powdered camphor, 20 gr.; spermaceti ointment, 7 dr. In inflamed piles, &c.

2. (Sundelin.) Decoction of oak bark, 6 fl. oz.; solution of diacetate of lead, 112 oz.; mix, collect and drain the precipitate, and mix it, whilst still moist, with lard, 1 oz.; camphor, 10 gr. In bedsores.

Ointment of Tan′nin. Syn. Unguentum tannini, U. acidi tannici, L. Prep. (Richard.) Tannin, 2 dr.; water, 2 fl. dr.; triturate them together, then add of lard, 112 oz. Astringent and hæmostatic. In piles, prolapsus, &c. It is a very cleanly and effective application.

Ointment of Tar. Syn. Unguentum picis liquidæ (Ph. L. E. & D.), L. Prep. 1. (Ph. L.) Tar and suet, of each 1 lb.; melt them together, and press the mixture through a linen cloth.

2. (Ph. E.) Tar, 5 oz.; beeswax, 2 oz.; melt together, and stir the mixture briskly until it concretes.

3. (Ph. D.) Tar, 12 pint; yellow wax, 4 oz.; as the last.