Fine, yellow, odorless, tasteless powder. Insoluble in water and in alcohol.

Action and Uses: Used locally in parasitic diseases of the skin and as a mild cathartic especially in hemorrhoids.

Dosage: 4 Gm. or 1 drachm (U.S.P.).

Trochisci Sulphuris et Potassii Bitartratis (Troch. Sulphur. et Pot. Bitart.), Troches of Sulphur and Potassium Bitartrate, N.F. (Troches of Sulphur and Cream of Tartar).—Each troche contains washed sulphur (0.3 Gm. or 5 grains) and potassium bitartrate (0.06 Gm. or 1 grain) with tragacanth, sugar and oil of orange.

Dosage: 1 troche (N.F.). Dose so small as to be practically worthless.

*Sulphur Praecipitatum (Sulphur Praec.), Precipitated Sulphur, U.S.P. (Lac Sulphuris, Milk of Sulphur).—S. Made by precipitating a solution of calcium sulphide with hydrochloric acid.

Fine, pale yellow, odorless, tasteless powder.

Action and Uses: Same as those of washed sulphur; more active and irritant.

Dosage: 4 Gm. or 1 drachm (U.S.P.).

*Sulphur Sublimatum (Sulphur Sublim.), Sublimed Sulphur, U.S.P. (Flowers of Sulphur).—S.