Latin, Sinapis Nigra

Eng., Black Mustard. Synonym, Brown Mustard. The seed of Brassica nigra.

Average Dose

Emetic, 2 1/2 drachms (10 Gm.).

Official Preparations and Constituents.

Emplastrum Sinapis

Eng., Mustard Plaster. Synonyms, Charta Sinapis, Mustard Paper (U. S. P., viii). A uniform mixture of powdered black mustard (deprived of its fixed oil) and a solution of rubber, spread on paper, cotton cloth, or other fabric.

Oleum Sinapis Volatile

Eng., Volatile Oil of Mustard. Synonym, Essential Oil of Mustard.

Average Dose

1/8 minim (0.008 mil).

Therapeutic Action

Emetic, rubefacient, vesicant. Uses.-See Sinapis Alba. The oil is a constituent of many proprietary liniments. It is a powerful irritant.