White mustard seeds, dominated by sinalbin (see glucosinolates), which is converted to p-hydroxybenzyl isothiocyanate (pungent-tasting, non-volatile) after hydrolysis.
Quality is defined in the German Drug Codex (DAC).
HMPC: not processed
ESCOP: not processed
Commission E-Monography: for external use in catarrhs of the airways, for segmental therapy as poultice or mustard plaster in chronic degenerative joint diseases and soft tissue rheumatism
Empirical medicine: neuralgia, rheumatic complaints, flu-like infections.
Mustard plasters" with a mushy mustard seed preparation on a plaster basis are commercially available; also a tincture (mustard spirit - Spiritus sinapis).