Zhi Cao Wu
Aconitum kusnezoffii Reichb.
β― TCM Properties
Dispels Wind-Dampness; Warms the Channels and Disperses Cold; Alleviates Pain; Reduces Swelling and Draws Out Toxins
Botanical Description
Aconitum kusnezoffii Reichb. (Ranunculaceae) is a perennial herb native to northeastern China, Korea, eastern Russia, and Mongolia, growing 70-150 cm tall with palmately divided leaves and showy dark purple, helmet-shaped flowers in terminal racemes. It bears a paired tuberous root system of a 'mother' and 'daughter' tuber. Zhi Cao Wu is the processed lateral (daughter) tuber, prepared by prolonged soaking, repeated boiling, and steaming to hydrolyze the highly toxic diester diterpenoid alkaloids (mesaconitine, hypaconitine, deoxyaconitine) into far less toxic monoester or amine forms. Raw Cao Wu is severely cardio- and neurotoxic and is not used internally. In traditional Chinese medicine, processed Zhi Cao Wu is acrid, bitter, hot, and toxic, entering the heart, liver, kidney, and spleen channels; it dispels wind-damp, warms the channels, and relieves severe pain, used for wind-damp painful obstruction, cold-pattern joint pain, traumatic injury, and severe abdominal cold pain. Strict dose limits and prolonged decoction are required.
Dosage
| Form | Amount | Frequency | Duration | Population | Notes |
|---|---|---|---|---|---|
| decoction | 9-15g | Daily | β | β | β |
Cultural & Historical Context
Traditional Chinese Uses
Zhi Cao Wu (processed aconite lateral root, Aconitum kusnezoffii) is an extremely toxic herb processed to reduce its toxicity before clinical use. Like processed Chuan Wu, it strongly warms the channels, disperses deep cold, and unblocks Qi and Blood in severe Wind-Cold-Damp bi with intractable joint pain and numbness. It is reserved for serious cold-obstruction conditions when other treatments have been inadequate, requiring strict professional supervision.
Traditional American Uses
None Documented
Important Disclaimer
This information is for educational purposes only and is not intended to replace professional medical advice. Always consult a qualified healthcare provider before using any herbal remedy, especially if you are pregnant, nursing, or taking medications.