Nux Vomica (Processed)
- Chinese
- 制马钱子
- Pinyin
- Zhi Ma Qian Zi
- Latin
- Semen Strychni Praeparata
Known in TCM as Zhi Ma Qian Zi (制马钱子), this bitter, warm herb enters the Liver and Spleen. Traditionally, it the sand-fried or oil-fried processed form of Ma Qian Zi, prepared specifically to reduce strychnine content to a safer level while retaining Blood-invigorating and pain-relieving activity, most often applied for joint pain, traumatic injury, and rheumatoid arthritis. Modern research has identified Strychnine among its active constituents.
Part used: Seed
Also Known As
Latin: Semen Strychni Praeparata | Pinyin: Zhi Ma Qian Zi | Chinese: 制马钱子
TCM Properties
- Taste
- bitter
- Temperature
- warm
- Channels
- Liver, Spleen
Traditional Use
Primary Actions
- The sand-fried or oil-fried processed form of Ma Qian Zi, prepared specifically to reduce strychnine content to a safer level while retaining Blood-invigorating and pain-relieving activity
- Unblocks the channels and collaterals and disperses swelling; used in precisely measured doses for Bi syndrome, numbness, and traumatic injury
- This processed form, not the raw seed, is the material actually incorporated into Chinese Pharmacopoeia-regulated formulas
Classical References
- Processing (typically sand-frying followed by grinding) is a pharmacopoeia-mandated step for Ma Qian Zi, without which the raw seed is considered unsafe for internal use
Modern Research
Active Compounds
- Strychnine (reduced relative to raw seed)
- Brucine (reduced relative to raw seed)
Studied Effects
- Processing measurably reduces strychnine content while total alkaloid pharmacological activity, including anti-inflammatory and analgesic effects, is substantially retained
- Even in processed form, the therapeutic window remains narrow and toxicity risk is significant if dosing guidance is not followed exactly
PubMed References
Safety & Interactions
Contraindications
- Pregnancy
- Children
- Cardiac conduction disorders
Cautions
- Still toxic despite processing; dosage must follow Chinese Pharmacopoeia limits exactly and only under qualified practitioner supervision
- Not for self-administration or unsupervised use
- Overdose symptoms include muscle spasm, convulsion, and can progress to respiratory failure; treat as a medical emergency
Drug Interactions
- Contraindicated in combination with other CNS stimulants or medications lowering seizure threshold
Conditions
- Joint Pain Traditional ★★☆☆☆ JSON
- Traumatic Injury Traditional ★★☆☆☆ JSON
- Rheumatoid Arthritis Traditional ★☆☆☆☆ JSON
Frequently Asked Questions
What is Nux Vomica (Processed) used for?
Nux Vomica (Processed) is traditionally used to The sand-fried or oil-fried processed form of Ma Qian Zi, prepared specifically to reduce strychnine content to a safer level while retaining Blood-invigorating and pain-relieving activity, Unblocks the channels and collaterals and disperses swelling; used in precisely measured doses for Bi syndrome, numbness, and traumatic injury, This processed form, not the raw seed, is the material actually incorporated into Chinese Pharmacopoeia-regulated formulas. Research has investigated its effects on: Processing measurably reduces strychnine content while total alkaloid pharmacological activity, including anti-inflammatory and analgesic effects, is substantially retained; Even in processed form, the therapeutic window remains narrow and toxicity risk is significant if dosing guidance is not followed exactly.
What are other names for Nux Vomica (Processed)?
Nux Vomica (Processed) is also known as Prepared Nux Vomica, Processed Strychnos nux-vomica seed. In TCM: 制马钱子 (Zhi Ma Qian Zi); Semen Strychni Praeparata.
Is Nux Vomica (Processed) safe during pregnancy?
Nux Vomica (Processed) is not recommended during pregnancy.
What are the contraindications for Nux Vomica (Processed)?
Nux Vomica (Processed) should not be used in: Pregnancy; Children; Cardiac conduction disorders. Consult a qualified practitioner before use.
Does Nux Vomica (Processed) interact with any medications?
Nux Vomica (Processed) may interact with: Contraindicated in combination with other CNS stimulants or medications lowering seizure threshold. Always inform your healthcare provider of any herbal supplements you are taking.