Natural Herb Library

Raw Chuan Wu Root

Chinese
川乌
Pinyin
Chuan Wu
Latin
Radix Aconiti
Botanical illustration of Root of Common Monkshood, Aconitum carmichaelii, showing raw Chuan Wu mother-root material and diagnostic source details.
Botanical plate by Kodi .

Known in TCM as Chuan Wu (川乌), this acrid and bitter, hot herb enters the Kidney, Liver, and Spleen. Traditionally, it dispels wind, scatters cold, and relieves severe pain ... raw Chuan Wu is the intensely hot toxic mother-root lane used for stubborn cold-damp painful obstruction and deeply fixed cold pain, most often applied for joint pain, rheumatism, and low back pain. Modern research has identified Aconitine, among its active constituents.

Part used: Root

Also Known As

Raw Monkshood Mother Root Aconitum carmichaelii Mother Root Aconiti Radix

Latin: Radix Aconiti | Pinyin: Chuan Wu | Chinese: 川乌

TCM Properties

Taste
acrid, bitter
Temperature
hot
Channels
Kidney, Liver, Spleen

Traditional Use

Primary Actions

  • Dispels wind, scatters cold, and relieves severe pain ... raw Chuan Wu is the intensely hot toxic mother-root lane used for stubborn cold-damp painful obstruction and deeply fixed cold pain.
  • Warms the channels and unblocks severe cold stagnation ... it is chosen when numbness, contracture, neuralgic pain, or cold lodged in the joints and limbs is too strong for milder warming herbs.
  • Addresses severe cold-type bi and traumatic pain ... traditional use extends to hard chronic pain states that clearly improve with warmth and where toxic strong medicinals are judged necessary.

Secondary Actions

  • This page must stay distinct from the already-live prepared Chuan Wu page ... raw mother root is far more dangerous and should not be treated as a routine interchangeable version.
  • It must also stay separate from the Fu Zi family ... Chuan Wu is the mother root aimed more at pain-dispelling and channel-warming, while Fu Zi emphasizes restoring yang and rescuing collapse.

Classic Formulas

  • Wu Tou Tang ... classic severe cold-damp painful-obstruction formula built around raw aconite-root force.
  • Xiao Huo Luo Dan lineage ... chronic cold-phlegm and blood-stasis obstruction with severe fixed pain and numbness.
  • Regional arthralgia and trauma formulas ... used only when pain is severe, cold, fixed, and difficult to open.

Classical References

  • Traditional materia medica consistently describes Chuan Wu as hot, acrid, bitter, and toxic, with a special role in severe cold pain and obstruction.
  • Processing exists precisely because the raw form is too dangerous for ordinary casual use.

Modern Research

Active Compounds

  • Aconitine, mesaconitine, and hypaconitine ... highly toxic diester diterpenoid alkaloids characteristic of raw Aconitum roots
  • Other aconite alkaloids and phenolic or polysaccharide fractions discussed in broader Aconitum reviews
  • Detoxification-related transformation products that increase only after proper processing

Studied Effects

  • A 2025 review summarized the active compounds, pharmacology, toxicity, detoxification, and applications of Aconitum carmichaelii, reinforcing that efficacy and danger cannot be separated in raw aconite-root discussions (PMID 39306209).
  • A 2022 systematic review covered traditional use and the pharmacological properties of polysaccharides and phenolic compounds in Aconitum carmichaelii roots, showing that raw-root research is broader than alkaloids alone even though toxicity remains central (PMID 35240238).
  • A 2017 review of traditional and current methods for reducing toxicity of Aconitum roots explains why unprocessed mother-root use is such a high-risk practice and why paozhi is clinically indispensable (PMID 28666834).

PubMed References

Safety & Interactions

Contraindications

  • Pregnancy
  • Heat syndromes, yin deficiency with heat, or true fluid depletion without cold
  • Internal use of raw or inadequately processed aconite without expert supervision
  • Known ventricular arrhythmia or unstable severe cardiac disease

Cautions

  • Raw Chuan Wu is more dangerous than the processed Chuan Wu page and should never be treated as a casual pain herb.
  • Improper dosing or under-processing can cause oral numbness, vomiting, diarrhea, weakness, hypotension, neurologic toxicity, and life-threatening ventricular arrhythmias.
  • This is one of the clearest examples in Chinese medicine of a potent herb whose processing is medically essential, not optional.

Drug Interactions

  • Cardiac glycosides such as digoxin ... additive arrhythmogenic risk
  • Class I and III antiarrhythmic drugs ... unpredictable electrophysiologic interaction
  • Beta-blockers or other rate-slowing agents ... may worsen bradycardia or mask early toxicity
  • QT-prolonging medications ... additive risk of malignant ventricular arrhythmia

Conditions

Frequently Asked Questions

What is Raw Chuan Wu Root used for?

Raw Chuan Wu Root is traditionally used to Dispels wind, scatters cold, and relieves severe pain ... raw Chuan Wu is the intensely hot toxic mother-root lane used for stubborn cold-damp painful obstruction and deeply fixed cold pain., Warms the channels and unblocks severe cold stagnation ... it is chosen when numbness, contracture, neuralgic pain, or cold lodged in the joints and limbs is too strong for milder warming herbs., Addresses severe cold-type bi and traumatic pain ... traditional use extends to hard chronic pain states that clearly improve with warmth and where toxic strong medicinals are judged necessary.. Research has investigated its effects on: A 2025 review summarized the active compounds, pharmacology, toxicity, detoxification, and applications of Aconitum carmichaelii, reinforcing that efficacy and danger cannot be separated in raw aconite-root discussions (PMID 39306209).; A 2022 systematic review covered traditional use and the pharmacological properties of polysaccharides and phenolic compounds in Aconitum carmichaelii roots, showing that raw-root research is broader than alkaloids alone even though toxicity remains central (PMID 35240238)..

What are other names for Raw Chuan Wu Root?

Raw Chuan Wu Root is also known as Raw Monkshood Mother Root, Aconitum carmichaelii Mother Root, Aconiti Radix. In TCM: 川乌 (Chuan Wu); Radix Aconiti.

Is Raw Chuan Wu Root safe during pregnancy?

Raw Chuan Wu Root is not recommended during pregnancy.

What are the contraindications for Raw Chuan Wu Root?

Raw Chuan Wu Root should not be used in: Pregnancy; Heat syndromes, yin deficiency with heat, or true fluid depletion without cold; Internal use of raw or inadequately processed aconite without expert supervision; Known ventricular arrhythmia or unstable severe cardiac disease. Consult a qualified practitioner before use.

Does Raw Chuan Wu Root interact with any medications?

Raw Chuan Wu Root may interact with: Cardiac glycosides such as digoxin ... additive arrhythmogenic risk; Class I and III antiarrhythmic drugs ... unpredictable electrophysiologic interaction; Beta-blockers or other rate-slowing agents ... may worsen bradycardia or mask early toxicity; QT-prolonging medications ... additive risk of malignant ventricular arrhythmia. Always inform your healthcare provider of any herbal supplements you are taking.