| Isatis |
| Isatis tinctoria | | Cruciferae | | Ban Lan Gen | | (ban means plank; lan means blue; gen is root; this is root that yields a blue dye; it is unclear how the term ban became associated with it, and could represent a changed character) | |
Dyer's Woad |
| Root (collected in autumn, with or without the rhizome) | | Bitter | | Cold | | Clear heat and resolve toxin, cool blood, benefit the throat | | Traditional Chinese applications |
| Fever, headache, sore throat, and macula associated with a febrile disease; skin eruptions, sores, and painful throat due to heat-toxin; jaundice due to damp-heat | | Possible unwanted effects |
| None noted | | None reported | | TCM and other contraindications |
| Weak patients and those who do not have heat-toxin (e.g., absence of infection) | | Not currently included in Sen tablet formulas | | Subhuti Dharmananda, Ph.D. Institute for Traditional Medicine | | 6 Nov 2002 |
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