Pharmaceutical Latin: Semen Strychni
Common English: Nux-Vomica Seeds
Prepared Vomit Nut
Horse Money Seeds
Obsolete Substances: Herbs for External Application
Taste Temperature Entering Meridians Dosage
Extremely Toxic
Internally: .02-.09g
Topically: .1-.3g
Tincture: 3-18 drops/day
Zhi Ma Qian Zi
Powder or pill: .6-1.2g
Tincture: 3-18 drops/day
Actions Indications/Syndromes

Unblocks the channels and collaterals, disperses clumps, cools Blood Heat to reduce swelling and alleviates pain

Abscess, sores and Yin type ulcers

Swelling and pain due to trauma

Very stubborn Wind-Damp Bi with pain, paresthesias, numbness and spasms


Phlegm-Damp Obstructs Heart

Liver and Kidney Deficiencies

Wind-Cold-Damp Bi

Liver and Gallbladder Qi Stagnation

Stomach Qi Stagnation
  • Contraindicated for children.
  • Contraindicated during pregnancy and breast feeding.
  • Contraindicated for weakness.
  • Contraindicated for those with Heat conditions.
  • Contraindicated for those with hypertension.
  • Contraindicated for those with severe Liver and Kidney lesions.
  • Contraindicated for those with cerebral or medullar hyperactivity.
  • Contraindicated for those with paralysis with contractions or spasms.
  • This substance causes tissue irritation in acute conditions.
  • Use extreme caution for internal use.
  • Use caution externally as the toxin is absorbed through the skin.
  • Overdoses with as little as 50mg presents with crawling sensation in neck area, difficulty swallowing and irritability.
  • The unprepared form should never be used.
  • Do not use long term.

Ru Xiang
Zi Ran Tong
Rz. Drynariae
Gu Sui Bu
Mo Yao

Rx. Sophorae Tonkinensis
Shan Dou Gen
Rx. Isatidis
Ban Lan Gen

Xiong Huang
Ru Xiang
Squama Manitis
Chuan Shan Jia

Topically for pain due to trauma, swelling, sprain and fractures.

Severe pain and swelling of the throat.

Sores, abscess and painful swellings.

Rx. Aconiti Preparata
Zhi Chuan Wu
Rx. Clematidis
Wei Ling Xian

Hb. Ephedrae
Ma Huang
Rz. Atractylodis
Cang Zhu
Quan Xie

Hb. Ephedrae
Ma Huang
Ru Xiang
Mo Yao
Grain-Based Alcohol

Wind-Damp Bi with spasms, numbness or weakness.

Intense Wind-Cold Bi.

Muscle aches and pains.

Reduces swelling relieves pain topically.

Hb. Ephedrae
Ma Huang
Ru Xiang
Rz. Atractylodis
Cang Zhu
Quan Xie

Rx. Achyranthis Bidentatae
Niu Xi

Rx. Glycyrrhizae
Gan Cao

Rx. Ginseng
Ren Shen
Rx. Angelicae Sinensis
Dang Gui
Ru Xiang
Squama Manitis
Chuan Shan Jia

Wind-Damp Bi.

Numbness and paralysis of the extremities.

Facial paralysis.

Myasthenia gravis.

Atrophy and numbness of the extremities.

  1. This is also listed by some sources as an anti-cancer herb.
  2. Signs of toxicity are dizziness, headache, dry mouth, indigestion, irritability, and apprehension.
  3. The key to the use of this herb is atony.
  4. Deficiency conditions of the musculoskeletal, nervous and digestive systems are appropriate indicators for use.
  5. This herb inhibits the activity of leukemia cells.
  6. For pharyngitis, this herb may be ground with Rx. Aucklandiae Mu Xiang and Rx. Sophorae Tonkinensis Shan Dou Gen and blown into the throat.
  7. This herb is said to be violently toxic to dogs, birds and humans.
  8. This herb was found to be effective in treating esophageal cancer.
  9. This herb must be processed to reduce its toxicity.
  10. Sucking the fruit is said to cure exogenous febrile disease, pharyngitis and abdominal mass.
  11. Decocting with a dose equal to or greater than the dose of Ma Qian Zi reduces the toxicity.
  12. Sand-fried Nux-Vomica Seed Sha Chao Ma Qian Zi is less toxic and more easily pulverized.
  13. For soreness and inflammation of the throat, grind into a powder, mix with sesame oil and apply topically.
  14. With proper preparation, it can be used topically to treat female genital lesions or ulcerations.