Black Mustard
brassica nigra
Medicinal Actions
Analgesic, Antidote, Antifertility, Carminative, Diuretic, Emetic, Gastrotonic, Laxative, Pancreatonic, Stimulant, Stomachic, Vesicant
Primary Conditions Treated
Safety & Contraindications
Class 1; Class 2b. Contraindications: children younger than 6 years; renal disease. Even external poultice should be limited to 5–10 minutes pediatrically, 10–15 minutes for adults, less for sensitive patients. 15–30 minutes plaster can cause severe burns. Millspaugh has said, “unground seeds ... proved dangerous, as they are liable to become impacted in the bowel and set up a fatal inflammation”. Adverse effects: skin and nervous damage. Should not be used for more than 2 weeks. Avoid taking with ammonia-containing products because ammonia with mustard oil yields inactive thiosinamine. Contraindicated in GI ulcers and nephrosis. Overdoses internally cause GI distress. Hyperthyroidism with goiter traced to the use of the isothiocyanates in mustard. Delaneyite nitpickologists will doubtless clamber to put the same goitrogenic warning on all members of the mustard family as well as papaya, caper, and nasturtium.